North America Native Plant

Drymary Dwarf-flax

Botanical name: Hesperolinon drymarioides

USDA symbol: HEDR4

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Linum drymarioides Curran (LIDR2)   

Drymary Dwarf-Flax: A Tiny California Treasure Worth Protecting Meet the drymary dwarf-flax (Hesperolinon drymarioides), a petite California native that proves good things really do come in small packages. This diminutive annual wildflower might not win any awards for size, but what it lacks in stature, it more than makes up ...

Rare plant alert!

Region: Conservation status by state

Status: S2: Status is uncertain but is somewhere between the following rankings: Imperiled: Extremely rare due to factor(s) making it especially vulnerable to extinction. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000) ⚘

Drymary Dwarf-Flax: A Tiny California Treasure Worth Protecting

Meet the drymary dwarf-flax (Hesperolinon drymarioides), a petite California native that proves good things really do come in small packages. This diminutive annual wildflower might not win any awards for size, but what it lacks in stature, it more than makes up for in ecological importance and quiet charm.

A True California Original

Drymary dwarf-flax is a proud California endemic, meaning you won’t find it growing naturally anywhere else in the world. This special little plant calls the Golden State home, where it has adapted to some pretty unique growing conditions that most other plants would find downright inhospitable.

Why This Little Plant Matters (And Why You Should Care)

Here’s where things get serious: drymary dwarf-flax is considered imperiled, with a conservation status of S2. This means there are likely only 6 to 20 known populations left, with somewhere between 1,000 to 3,000 individual plants remaining in the wild. In plant conservation terms, that’s pretty alarming.

But here’s the good news – responsible gardeners can play a role in conservation efforts by growing this species, provided they source their seeds or plants ethically from reputable native plant suppliers or conservation organizations.

What Does Drymary Dwarf-Flax Look Like?

Don’t expect this little guy to dominate your garden border. As an annual forb (that’s plant-speak for a non-woody flowering plant), drymary dwarf-flax typically reaches just 2 to 8 inches in height. It features:

  • Delicate, thread-like leaves
  • Tiny white or pale pink flowers that seem to float above the foliage
  • A fine, almost grass-like texture
  • A low, spreading growth habit

Where and How to Grow Drymary Dwarf-Flax

This isn’t your typical garden center annual, and that’s exactly the point. Drymary dwarf-flax has some very specific needs that mirror its natural habitat:

Growing Conditions

  • Soil: Thrives in poor, well-draining soils, particularly serpentine soils
  • Sun: Full sun exposure
  • Water: Minimal water needs once established; drought-tolerant
  • Climate: USDA hardiness zones 9-10 (California’s Mediterranean climate)

Planting and Care Tips

Growing drymary dwarf-flax successfully means thinking like the plant – it wants to struggle a little bit:

  • Direct seed in fall to allow for natural cold stratification
  • Don’t amend the soil – this plant actually prefers nutrient-poor conditions
  • Provide excellent drainage to prevent root rot
  • Once established, avoid supplemental watering
  • Allow plants to self-seed for future generations

Perfect Garden Companions

Drymary dwarf-flax works beautifully in:

  • California native plant gardens
  • Rock gardens with poor soil
  • Serpentine plant collections
  • Specialized wildflower meadows
  • Conservation-focused landscapes

Supporting Pollinators, One Tiny Flower at a Time

While the flowers may be small, they’re perfectly sized for California’s smallest pollinators. Native bees, beneficial insects, and other tiny creatures appreciate having appropriately-scaled nectar sources available.

A Word About Responsible Sourcing

Given this plant’s imperiled status, it’s absolutely crucial to source seeds or plants only from reputable suppliers who can guarantee their material wasn’t collected from wild populations. Look for suppliers that specialize in conservation propagation or contact local native plant societies for guidance.

The Bottom Line

Drymary dwarf-flax isn’t going to be the star of your garden show, but it could be the star of your conservation efforts. By growing this rare California native, you’re not just adding an interesting plant to your collection – you’re participating in preserving a unique piece of California’s natural heritage for future generations.

Sometimes the smallest plants carry the biggest responsibilities, and drymary dwarf-flax is a perfect example of how home gardeners can make a real difference in plant conservation, one tiny seed at a time.

Drymary Dwarf-flax

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Linales

Family

Linaceae DC. ex Perleb - Flax family

Genus

Hesperolinon (A. Gray) Small - dwarf-flax

Species

Hesperolinon drymarioides (Curran) Small - drymary dwarf-flax

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA