Roots

To journey into the heart of textured hair is to trace a lineage that extends beyond personal memory, beyond the colonial rupture, deep into the very soil from which ancient wisdom sprung. We are speaking here of more than just strands; we are speaking of living archives, of the intricate spirals that hold generations of stories, of resilience, and of an undeniable connection to the earth’s bounty. For those whose hair speaks in coils and kinks, in waves and locs, the quest for sustenance for these crowning glories leads us inevitably back to the ancestral grains.

These humble seeds, often overlooked in contemporary discourse, were once central to life itself, not merely as food but as powerful agents in the rituals of body and spirit. Their use in nurturing hair was a testament to a deep, reciprocal relationship with nature, a wisdom passed down not through written texts but through the tender touch of hands, through observation, and through a reverence for what the earth provided.

The very structure of textured hair, with its unique bends and twists, naturally presents a different hydration profile than straight hair. Our ancestors, acutely attuned to their environment, recognized this inherent quality. They understood that external forces ❉ the relentless sun, dry winds, the harsh realities of daily existence ❉ required a regimen steeped in protection and deep nourishment.

This understanding was not born of scientific laboratories, but from centuries of empirical wisdom, from knowing the land and its offerings. They recognized that the same grains that sustained their bodies could also fortify their hair, providing a shield and a source of vitality.

The horsetail reeds, with their unique segmentation and organic form, provide a powerful visual metaphor for the architecture of textured hair, offering a natural lens through which to appreciate diverse formations and celebrate the innate beauty of each coil and spring.

Elemental Hair Anatomy and Ancestral Sight

The human hair shaft, at its fundamental level, is a complex protein filament. For textured hair, this structure is particularly intricate, often characterized by an elliptical cross-section and a unique cuticle arrangement, which can make it more prone to dryness and breakage if not cared for with understanding. Long before microscopes unveiled keratin structures or electron beams detailed cellular junctions, our ancestors perceived hair with an intuitive and holistic sight.

They understood its needs through lived experience, through the feel of it in their hands, the way it responded to different climates, and the herbs and grains they gathered from their surroundings. This practical, generationally accumulated knowledge formed the bedrock of their hair care.

In many African societies, hair was a direct symbol of identity, social standing, age, and spiritual connection. A well-kept coiffure, often elaborate and requiring communal effort, signified health, prosperity, and connection to one’s lineage. The practices surrounding hair care were therefore not casual; they were sacred, communal, and deeply interwoven with the fabric of daily life.

The materials chosen for these rituals were often those closest to hand, those that held nutritional and life-sustaining properties. The ancestral grains, embodying growth and life, became natural candidates for this profound care.

This black and white portrait embodies ancestral heritage with its intricate braided updo, a timeless styling of textured hair which speaks volumes of cultural identity and the enduring artistry within Black hair traditions each braid reflecting meticulous detail in the pursuit of beauty and wellness.

Grains for Hair Nourishment a Historical View

Across various ancestral landscapes, specific grains rose to prominence for their perceived benefits to hair. While direct historical documents on granular hair recipes within African and diasporic contexts can be scarce, we unearth clues within broader cultural practices, ethnobotanical studies, and the oral traditions that have persisted through time. The principle was simple: if it nourishes the body, it may nourish the hair.

Ancestral wisdom saw hair not as a mere adornment but as a living extension of identity, a conduit for communal stories and a canvas for deeply rooted heritage.
  • Rice The story of rice and textured hair heritage is a particularly potent one, extending far beyond the borders of Asia where fermented rice water has long been celebrated by communities such as the Yao women for its incredible hair growth and conditioning properties. In a profound act of resistance and survival, enslaved African women, primarily rice farmers from West Africa, ingeniously braided rice grains into their cornrows before and during the horrific Transatlantic slave trade. This was not merely about hair care; it was about preserving a future, smuggling vital sustenance for their survival and the continued cultivation of their ancestral crops in new, harsh lands. This act of weaving grains into hair became a clandestine archive of heritage, a symbol of defiance against the brutal erasure of identity. The rice, thus, was a seed of life, both for their bodies and their culture, transported within the very structure of their hair. The benefits of rice water, with its amino acids and inositol, would have been experienced through indirect contact or even in the practice of washing, but its primary historical link to Black hair heritage centers on survival and clandestine transport.
  • Amaranth This ancient pseudo-cereal, revered by the Aztec, Inca, and Maya civilizations as a superfood and sacred plant, held significant nutritional value. Though primarily consumed, its rich profile of protein, amino acids (including lysine, often deficient in other grains), vitamins (C and B), and minerals (like squalene) would have been understood to contribute to overall health, which includes hair vitality. The use of its oil, extracted from the seeds, offers moisturizing and strengthening properties, improving shine and scalp health. Ancestral communities, recognizing its life-giving properties, might have inferred its external benefits, using it in rudimentary preparations for skin and hair.
  • Millet A staple across many parts of Africa and Asia for millennia, millet, with its diverse varieties, provided a cornerstone of nutrition. Its value in hair health is linked to its abundance of B vitamins (especially B7, biotin), iron, zinc, and silica. These elements are vital for keratin production, scalp health, and robust hair growth. While direct topical hair applications in ancient African texts are fewer, the deep dietary integration of millet would have supported hair health from within. Modern science confirms that compounds like miliacin, found in millet, actively support hair follicle regeneration and reduce hair loss.
  • Quinoa Hailing from the Andes, quinoa was a foundational crop for the Inca civilization, who considered it sacred. As a complete protein, it contains all nine essential amino acids, which are the building blocks of hair. Ancestrally, the Kallawaya people of the Andes used quinoa in their healing practices. For hair, this translates into strengthening, moisture retention, and improved elasticity, qualities invaluable for textured strands. While its primary traditional use wasn’t necessarily topical hair care, its nutritional density would have contributed significantly to the overall vitality of individuals, influencing hair health from within.
In the quiet of a rainfall, the woman's gesture embodies ancestral reverence, pouring seeds into a vessel as an offering, symbolizing the passing down of knowledge, haircare traditions, heritage, and a commitment to nurturing the coil, wave, spring, helix, spiral, undulation, texture, pattern, formation of natural hair.

The Lexicon of Hair from Ancient Tongues

The language used to describe hair in ancestral contexts extended beyond mere aesthetics. It reflected social structures, spiritual beliefs, and communal identity. Terms were not merely descriptive; they carried weight, meaning, and historical resonance. While specific grain-related terminology for hair care might be diffused through local dialects, the broader lexicon around hair health and ancestral practices tells a story.

In many West African cultures, for instance, words describing cleanliness, nourishment, and adornment of hair were often linked to rituals of preparation and community bonding. The very act of braiding or oiling was a language in itself, a form of communication about status, readiness for marriage, or mourning. The ingredients, whether shea butter or certain plant extracts, were named with reverence, signifying their power and connection to the earth. The inclusion of grains into this dialogue, even if subtle, speaks to a deeper connection between sustenance, ritual, and outward presentation, all rooted deeply in heritage.

Ritual

The tending of textured hair, particularly across African and diasporic communities, was rarely a solitary act. It was a shared experience, a communal gathering that wove together familial bonds, storytelling, and the transmission of ancestral knowledge. Within these tender moments, the presence of earth’s grains, whether in substance or through the wisdom they symbolized, found their true expression. The application of these elements was not merely a physical action but a sacred ritual, a dialogue between the present moment and the deep currents of heritage.

Consider the profound acts of styling, those intricate expressions that transcended mere appearance to communicate identity, history, and even coded messages of freedom. Within these traditions, the natural world provided the palette, and grains, though often unsung, played their part. They were integrated into formulations, utilized for their inherent properties that supported hair structure, moisture retention, and overall vitality, making textured hair resilient and receptive to styling.

The black and white treatment amplifies the subject’s strong features and distinctive coiled textured hair, celebrating Black hair traditions and modern self-expression through styling. Light and shadow define her gaze, inviting a connection and deeper contemplation on beauty and identity

Protective Styles as Cultural Artifacts

Protective styles, with their capacity to guard delicate strands from environmental stressors and manipulation, possess a heritage as old as time itself within Black communities. These styles ❉ cornrows, twists, braids, and their myriad variations ❉ were not simply aesthetic choices. They were sophisticated solutions for managing textured hair, preserving length, and safeguarding against breakage. They were also, crucially, vessels of culture and resistance.

It is within this framework of survival that grains, especially rice, hold a truly extraordinary place. During the harrowing passage of the transatlantic slave trade, West African women, often from societies skilled in rice cultivation, braided rice seeds and other grains into their cornrows. This act, quiet yet revolutionary, was a strategic measure for sustenance and cultural preservation.

The seeds, hidden within the complex patterns of their hair, were literal lifelines ❉ to be planted upon arrival in foreign lands, ensuring a source of food and maintaining a tangible connection to their homeland and agricultural heritage. This historical act underscores how hair, and the ancestral grains woven within it, became a symbol of enduring spirit.

The braiding of rice seeds into hair during the Transatlantic slave trade transformed hair into a clandestine vessel of survival, a testament to resilient human ingenuity and enduring heritage.

This historical reality also speaks to the inherent understanding of hair as a protective medium. The tightly woven cornrows created a secure environment for these precious seeds, mirroring the very purpose of protective styling for the hair itself: to shield and preserve. This intertwining of practical hair care with profound acts of resistance makes the connection between ancestral grains and textured hair heritage particularly poignant.

The regal portrait embodies Black hair traditions through this elegant braided updo which celebrates ancestral artistry and intricate styling. The luminous skin, complemented by traditional attire and precise braiding, elevates the subject this exemplifies the expressive potential of highly textured hair while honoring heritage and promoting holistic care for optimal hydration

Traditional Grain Preparations for Hair

The application of ancestral grains for hair care was rarely in their raw, unprocessed form. Instead, they underwent transformations ❉ fermentation, grinding, soaking ❉ to unlock their beneficial properties. This alchemy, passed down through generations, reveals a sophisticated understanding of plant chemistry and its effects on the hair and scalp.

  1. Rice Water Rinses The tradition of using fermented rice water, though widely documented in Asian cultures, particularly among the Red Yao women of China, whose exceptionally long and healthy hair is attributed to this practice, highlights a universal principle of utilizing grains for hair health. While the direct historical use among African communities for hair washing is less documented than its use for clandestine transport, the underlying understanding of its properties ❉ its amino acids, B vitamins, and inositol that strengthen hair from within and reduce breakage ❉ would have been universally beneficial. The methods involved soaking or fermenting rice, then using the milky liquid as a rinse or wash. This process extracts proteins, vitamins, and minerals that coat the hair shaft, providing a temporary fortifying layer and contributing to shine and softness.
  2. Millet Pastes and Dietary Integration Millet, as a dietary staple, was fundamental for internal hair health, providing essential nutrients that supported robust growth from the inside out. Its amino acids, iron, and zinc are crucial for keratin synthesis and scalp health. While direct topical applications might have been less common for millet than for other plant-based ingredients, its role in preventing deficiencies that could lead to hair thinning or loss was paramount. One could conceive of ground millet being incorporated into thicker, nutrient-rich hair masks alongside other ingredients, providing a wealth of micro-nutrients directly to the scalp.
  3. Amaranth Oil and Powders The seeds of amaranth yield an oil rich in squalene, an emollient that mimics the skin’s natural oils, offering deep moisture and shine. This oil, or even finely ground amaranth flour mixed with water or other emollients, could have been used in hair masques or scalp treatments. Its protein content would have contributed to strengthening the hair structure, especially beneficial for strands prone to dryness and breakage. The practice would align with the use of other natural oils and butters, like shea butter, which were foundational to African hair care.

The meticulous preparation of these grain-based treatments speaks to a deep connection to the earth’s rhythm and a profound respect for the ingredients themselves. These were not quick fixes, but rather a dedicated, often laborious process that was part of a larger life philosophy.

The woman embodies refined sophistication in her black dress and silver jewelry, with her artfully styled locs radiating both heritage and modern elegance. Her confident look and the timeless black and white aesthetic connect to themes of identity, beauty, and the enduring power of self-expression

The Science behind Ancestral Hair Practices

Modern scientific inquiry frequently provides validation for ancestral wisdom. The empirical observations of our forebears, refined over countless generations, often find their explanation in contemporary biochemistry and dermatology. The benefits observed from grain-based hair care are no exception.

For instance, the inositol in rice water, as contemporary research suggests, has a unique ability to penetrate the hair shaft and repair damage, remaining on the hair even after rinsing. This strengthens strands and contributes to elasticity, a boon for coily and kinky textures that are susceptible to breakage. Similarly, the amino acids and proteins abundant in quinoa and amaranth provide the essential building blocks for keratin, the primary protein of hair.

When applied topically, these can help fortify the hair’s outer cuticle, reducing porosity and improving overall integrity. Millet’s significant silica content supports the synthesis of collagen, which is indirectly beneficial for hair follicle health and strength.

The methods of preparation themselves, such as fermentation, also hold scientific merit. Fermentation can break down complex molecules into smaller, more bioavailable forms, enhancing the penetration and efficacy of the nutrients. This traditional knowledge, honed through observation and practice, anticipated modern biochemical understanding. The art of styling and the science of the strand were not separate entities in these ancestral practices; they were two facets of a unified, heritage-rich approach to care.

Relay

The journey of ancestral grains and their bond with textured hair is far from a relic of the past; it is a living continuum, a relay of wisdom passed from ancient hands to contemporary consciousness. In every coil and kink, in every quest for robust vitality, we discover echoes of long-held practices and a profound connection to the earth’s elemental offerings. The enduring appeal of these grains lies not only in their documented benefits but in their capacity to root us in a heritage that honors self-care as a sacred act.

For generations, Black and mixed-race communities have navigated complex societal landscapes, where hair often became a battleground of identity and a testament to resilience. Within this historical context, the reliance on natural, accessible ingredients, including grains, represented both practical necessity and a powerful affirmation of self. This deep lineage informs our understanding today, offering pathways to care that extend beyond superficial trends, drawing from a wellspring of time-tested approaches.

The image celebrates the intimate act of nurturing textured hair, using rich ingredients on densely coiled strands, reflecting a commitment to holistic wellness and Black hair traditions. This ritual links generations through ancestral knowledge and the practice of self-love embodied in natural hair care

Grains in Holistic Hair and Body Wellness

The ancestral approach to wellness was inherently holistic; the separation of body, spirit, and environment was a modern construct. For our forebears, what nourished the inner being invariably reflected in outward health, including the vitality of hair. Grains, as cornerstones of diet and ritual, embodied this interconnectedness.

Consider millet, a grain central to many African diets. Beyond its topical benefits, its dietary presence provided a wealth of iron, zinc, and B vitamins, vital for healthy hair growth and overall well-being. A strong body, fueled by nutrient-rich grains, was understood to produce strong hair. This integrated view meant that hair care was not merely about external applications, but about internal harmony.

For example, traditional fermented millet drinks like ‘Ambali’ in some African cultures are consumed not only for gut health but also for their purported benefits to skin and hair, showcasing an internal-external link. This highlights a perspective where healthy hair was a manifestation of systemic health, a reflection of balance within.

The understanding of particular grains, such as quinoa, as “superfoods” by ancient civilizations underscores this holistic view. The Kallawaya people of the Andes, known for their traditional healing practices, used quinoa in medicinal preparations, suggesting a recognition of its overall health-supporting properties which would, by extension, support healthy hair. The practice of consuming these grains for sustenance was, in effect, a primary form of hair care, influencing strength, texture, and growth from the inside out.

The photograph explores the use of rice grains, highlighting their inherent qualities conducive to holistic wellness, invoking notions of ancestral heritage and the rich benefits of natural elements present in wellness treatments that could support the essence of natural hair.

Addressing Hair Challenges through Ancestral Grains

Textured hair, due to its structural characteristics, often faces specific challenges: dryness, breakage, and the need for significant moisture retention. Historically, ancestral grains provided practical solutions to these concerns, long before the advent of chemical formulations.

  • Combating Dryness and Brittleness The moisturizing properties of certain grains, like amaranth, with its squalene content, would have been invaluable for thirsty strands. When ground into a paste or infused into oil, these could have acted as conditioning agents, sealing moisture and preventing the hair from becoming brittle. Oatmeal, a grain known for its emollient properties, would have been used to soothe itchy scalps and provide moisture, contributing to softness and elasticity. This natural emollient quality was a direct answer to the chronic dryness often faced by textured hair.
  • Strengthening and Promoting Growth The protein content of grains like quinoa and amaranth would have provided essential building blocks for hair, fortifying strands against damage. Millet, with its miliacin, directly stimulates hair follicle regeneration and can extend the life of hair roots, combating thinning. These internal and external applications formed a comprehensive approach to maintaining robust, growing hair. The consistent use of such natural elements over time built a foundation of strength.
  • Maintaining Scalp Health A healthy scalp is the foundation for healthy hair. Grains with anti-inflammatory or cleansing properties, such as oatmeal, would have been used in rinses or gentle scrubs to maintain a balanced scalp environment, addressing concerns like irritation or buildup. This focus on the scalp as the source of hair’s vitality was a central tenet of ancestral hair care.
Illuminated by soft light, the intergenerational braiding session unfolds a celebration of Black hair traditions. This intimate act strengthens familial bonds, promotes wellness, and celebrates cultural identity through expert practices passed down offering ancestral pride in the formation of textured hair

The Enduring Legacy a Modern Reclamation

The historical data and anecdotal accounts highlight a profound connection between ancestral grains and the vitality of textured hair. This heritage is not merely a footnote in history; it is a living, breathing blueprint for contemporary care. In an era where many seek natural, sustainable, and culturally resonant beauty solutions, these ancient grains offer a powerful return to source.

Consider the renewed interest in fermented rice water, a practice now globally recognized for its ability to strengthen and grow hair. While popularized in Asian contexts, its fundamental principles apply to all hair types, particularly those with a delicate structure that benefits from protein and moisture balance. This resurgence represents a modern reclamation of ancestral ingenuity, a recognition that the “old ways” often hold timeless secrets.

The journey of understanding ancestral grains in textured hair care is one of discovery and reconnection. It invites us to consider not just what we put on our hair, but the stories those ingredients carry, the hands that cultivated them, and the wisdom they represent. It allows us to honor a legacy of resilience and beauty.

The enduring wisdom of ancestral grains speaks to us today, offering pathways to hair wellness that honor both science and the deep roots of heritage.

The integration of grains into hair care was a reflection of necessity, resourcefulness, and a profound respect for the earth. These were not luxury items, but accessible, potent remedies woven into the fabric of daily existence and ritual. The survival of such practices, even in fragmented forms, serves as a testament to their efficacy and cultural importance.

The powerful statistical example of rice being braided into the hair of enslaved African women during the Transatlantic slave trade serves as a powerful illustration of the deep connection between ancestral grains, textured hair, and the history of Black experiences. This act of preservation, both of life and culture, is a stark reminder of the extraordinary ingenuity and resilience embedded within Black hair heritage. It underscores how what might seem like a simple act of hair styling was, in fact, a complex strategy for survival, a secret archive woven into each strand, passed down through generations. (Carney, 2002) This specific historical instance goes beyond mere cosmetic benefit; it elevates ancestral grains to the status of critical elements in a narrative of perseverance.

Embracing ancestral wisdom, the hands prepare a rice water rinse, a treasured holistic practice for enhancing textured hair's strength and vitality this highlights the intrinsic link between hair care, heritage, and the nurturing of expressive identity within Black and mixed-race hair traditions.

Connecting past Practices to Present Realities

The lessons gleaned from these historical uses offer valuable insights for modern textured hair care. They advocate for:

  1. Whole Ingredient Focus Prioritizing ingredients that are minimally processed and retain their full spectrum of nutrients, mirroring the direct connection our ancestors had with their plant sources.
  2. Rhythmic Application Embracing consistent, ritualistic care, understanding that hair health is built over time through diligent practices, much like the regular hair care rituals of old.
  3. Holistic Perspective Recognizing that hair health is intertwined with overall well-being, including nutrition, stress management, and a mindful approach to self-care.

The journey through ancestral grains is a powerful affirmation of the deep, enduring wisdom held within textured hair heritage. It encourages us to look backward to move forward, drawing strength and knowledge from the ancient earth and the resilient spirits who walked upon it.

Reflection

As we close this meditation on ancestral grains and their profound connection to textured hair, we find ourselves standing in a space where past and present converge. The coils, the waves, the kinks, the strands that dance with their own particular gravity ❉ each one is a living archive, holding the echoes of generations, of migrations, of triumphs, and of quiet, steadfast resilience. Roothea’s ‘Soul of a Strand’ ethos finds its true expression in this understanding: that textured hair is not merely a biological phenomenon; it is a heritage, a testament to enduring wisdom and an ongoing dialogue with the earth.

The grains ❉ rice, amaranth, millet, quinoa ❉ are more than just botanical specimens or nutritional powerhouses. They are silent witnesses to a lineage of care that understood inherent balance, the profound relationship between human and nature. They speak of a time when beauty was inseparable from utility, when sustenance for the body and adornment for the self came from the same benevolent source. This is a story of ingenuity born of necessity, of knowledge passed through touch and observation, of a profound respect for the gifts of the land.

To seek out these ancestral grains for our hair is to participate in a sacred relay. It is to honor the hands that first discovered their properties, the minds that understood their potential, and the spirits that carried their wisdom across oceans and generations. Our textured hair, in its glorious diversity, becomes a site of remembrance, a canvas upon which this ancient legacy continues to be painted. In every gentle application, in every conscious choice, we do not just care for our strands; we tend to a living library, ensuring that the stories, the strength, and the spirit of our heritage continue to flourish, unbound and incandescent.

References

  • Carney, Judith A. (2002). Black Rice: The African Origins of Rice Cultivation in the Americas. Harvard University Press.
  • Obidi, J. O. (2010). Traditional African Hair Care Practices and the Modernity Conflict. Journal of African Studies, 1(1), 1-12.
  • Akerele, O. (2017). Ethnobotanical Survey of Medicinal Plants Used for Hair Care in Southwestern Nigeria. Journal of Herbal Medicine, 9(2), 10-18.
  • Wang, J. & Li, R. (2018). Fermented Rice Water as a Traditional Hair Care Product: A Review of its Chemical Composition and Efficacy. Journal of Cosmetic Dermatology, 17(5), 785-790.
  • Srinivasan, S. & Subramanian, S. (2020). Nutritional and Therapeutic Benefits of Millets for Human Health. Journal of Food Science and Technology, 57(1), 1-10.
  • USDA National Nutrient Database for Standard Reference. (2023).
  • Carney, Judith A. (2004). “With grains in her hair”: Rice in colonial Brazil. Slavery & Abolition, 25(1), 1-28.
  • Essien, Inyang. (Undated). Black Rice. The Photoville FENCE.
  • Ansel, G. & Mahendra, A. (2023). Millet Seed & Optimal Hair Health: Everything You Need to Know. ResearchGate.
  • Li, L. & Hu, M. (2023). The Ancient Alchemy of Rice Water: How Red Yao Women Keep Extraordinary Hair For a Lifetime. Women.
  • Rosado, T. (2003). The Grammar of Hair. Journal of Diaspora Studies.

Glossary

Amino Acids

Meaning ❉ Amino acids serve as the foundational molecular constituents of proteins, including keratin, the very substance composing our glorious coils, curls, and waves.

Ancient Grains Hair

Meaning ❉ 'Ancient Grains Hair' signifies the thoughtful inclusion of botanical extracts from time-honored grains ❉ like quinoa, amaranth, or rice ❉ within hair care designed for textured strands.

Hair Follicle

Meaning ❉ The hair follicle, a delicate dermal pocket nestled within the scalp, serves as the singular point where each individual hair fiber begins its growth.

Hair Shaft

Meaning ❉ The hair shaft serves as the visible, graceful extension of our scalp, the very portion we admire and tend to daily.

West African Grains

Meaning ❉ West African Grains, within the delicate understanding of textured hair care, refer to a special array of botanical elements and seed-derived ingredients, often sourced from the native crops and flora of West Africa.

Ancient Grains Care

Meaning ❉ Ancient Grains Care, within the scope of textured hair understanding, refers to the intentional application of beneficial compounds sourced from time-honored grains ❉ such as quinoa, rice, or amaranth ❉ to support the intrinsic qualities of curls and coils.

Quinoa

Meaning ❉ Quinoa, often celebrated in nutrition, offers a gentle yet potent contribution to textured hair vitality.

African Grains

Meaning ❉ African Grains, within the sphere of textured hair understanding, denote a revered collection of nutrient-dense botanical constituents, traditionally derived from indigenous African cereals and pseudocereals.

Hair Health

Meaning ❉ Hair Health, for textured strands, denotes a state of optimal scalp vitality and fiber integrity, where each coil and kink displays balanced hydration and intrinsic resilience.

Hair Growth

Meaning ❉ Hair Growth, for those with distinct coils, curls, and waves, denotes the gentle biological cycle where new cellular structures emerge from the scalp's follicular depths, gradually extending each unique strand.