North America Native Plant

Slender Bird’s Beak

Botanical name: Cordylanthus tenuis viscidus

USDA symbol: COTEV

Life cycle: annual

Habit: forb

Native status: Native to the lower 48 states  

Synonyms: Cordylanthus viscidus (Howell) Pennell ex M. Peck (COVI4)   

Slender Bird’s Beak: A Delicate Native Wildflower for the Adventurous Gardener If you’re looking for a gardening challenge that comes with serious bragging rights, let me introduce you to slender bird’s beak (Cordylanthus tenuis viscidus). This delicate annual wildflower is not your typical garden center find, and frankly, that’s part ...

Slender Bird’s Beak: A Delicate Native Wildflower for the Adventurous Gardener

If you’re looking for a gardening challenge that comes with serious bragging rights, let me introduce you to slender bird’s beak (Cordylanthus tenuis viscidus). This delicate annual wildflower is not your typical garden center find, and frankly, that’s part of its charm. Native to the western United States, this little beauty is for gardeners who like to walk on the wild side of native plant cultivation.

What Makes Slender Bird’s Beak Special?

Slender bird’s beak is a true California and Oregon native, naturally growing in the coastal areas and inland valleys of these states. As an annual forb, it completes its entire life cycle in one growing season, making every year a fresh start and a new adventure in your garden.

The plant gets its whimsical common name from its small, tubular flowers that somewhat resemble a bird’s slender beak. These yellowish blooms appear on sticky, slender stems that give the whole plant a delicate, almost ethereal appearance. Don’t expect a showy display – this is more about subtle beauty and the satisfaction of successfully growing something truly special.

The Challenge Factor: Why This Plant Isn’t for Everyone

Let’s be honest – slender bird’s beak is not a beginner’s plant. This species is what botanists call hemiparasitic, which means it’s partially parasitic on other plants. In the wild, it attaches to the roots of nearby plants to supplement its nutrition. This unique lifestyle makes it notoriously difficult to cultivate in typical garden settings.

Growing Conditions and Care

If you’re still intrigued (and I hope you are!), here’s what slender bird’s beak needs to thrive:

  • Climate: USDA hardiness zones 8-10, preferring a Mediterranean climate
  • Sunlight: Full sun exposure
  • Soil: Dry, sandy, or gravelly soils with excellent drainage
  • Water: Minimal water once established; drought-tolerant
  • Host plants: Benefits from proximity to compatible native plants that can serve as hosts

Garden Design and Landscape Role

Slender bird’s beak works best in specialized native wildflower gardens or restoration projects rather than traditional ornamental landscapes. Consider it for:

  • Native plant demonstration gardens
  • Habitat restoration areas
  • Specialized wildflower meadows
  • Educational gardens showcasing rare native species

Wildlife and Pollinator Benefits

Despite its small stature, slender bird’s beak plays an important role in supporting local ecosystems. The flowers attract native bees and other small pollinators, contributing to the complex web of relationships that keep native habitats healthy.

The Bottom Line: Should You Grow It?

Slender bird’s beak is definitely not for every gardener or every garden. If you’re looking for easy-care, showy flowers, you’ll want to look elsewhere. But if you’re passionate about native plants, enjoy a good challenge, and want to support local ecosystems with truly authentic native species, this could be your next gardening adventure.

Success with this plant requires patience, the right conditions, and probably a bit of luck. But for the dedicated native plant enthusiast, growing slender bird’s beak successfully is like earning a master’s degree in native gardening. Just remember – this is a plant that’s much happier in restoration settings than formal gardens, so choose your location wisely and enjoy the journey of learning to work with one of nature’s more particular creations.

Slender Bird’s Beak

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Scrophulariales

Family

Scrophulariaceae Juss. - Figwort family

Genus

Cordylanthus Nutt. ex Benth. - bird's-beak

Species

Cordylanthus tenuis A. Gray - slender bird's beak

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