Native Plants

Hansen’s Bird’s Beak

Cordylanthus pilosus hansenii

USDA symbol: COPIH

annual forb

Lower 48 states: native

If you’ve ever wondered about some of California’s more mysterious native plants, let me introduce you to Hansen’s bird’s beak (Cordylanthus pilosus hansenii). This little annual forb might not win any beauty contests, but it’s got a fascinating story and plays an important role in California’s native ecosystems. Hansen’s bird’s ...

Hansen’s Bird’s Beak may be listed as rare in your area.
Global Conservation Status

Status: S3?T3? | Subspecies or variety is vulnerable: Found only in a restricted range, even if abundant at some locations. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals.

Hansen’s Bird’s Beak: A Rare California Native Worth Protecting

If you’ve ever wondered about some of California’s more mysterious native plants, let me introduce you to Hansen’s bird’s beak (Cordylanthus pilosus hansenii). This little annual forb might not win any beauty contests, but it’s got a fascinating story and plays an important role in California’s native ecosystems.

What Makes Hansen’s Bird’s Beak Special?

Hansen’s bird’s beak is a member of the bird’s beak family, and like its relatives, it’s what botanists call a hemiparasite. Don’t worry – it’s not as scary as it sounds! This simply means the plant can photosynthesize on its own but also taps into the roots of other plants to get additional nutrients. Think of it as nature’s way of sharing resources, though the host plants might not always appreciate the arrangement.

As an annual forb, this plant completes its entire life cycle in one growing season. It lacks any significant woody tissue and dies back completely each year, relying on seeds to continue the next generation.

Where Does It Call Home?

Hansen’s bird’s beak is a true California endemic, meaning you won’t find it growing naturally anywhere else in the world. This makes it extra special – and extra vulnerable. The plant is found only in specific locations within California, making it a rare treasure in the state’s diverse flora.

  • Species observed
  • No observations

Important Conservation Note

Here’s where things get serious: Hansen’s bird’s beak has a conservation status that indicates it’s quite rare and potentially at risk. With a Global Conservation Status of S3?T3?, this plant faces uncertain future prospects. This rarity status means we need to be extra careful about how we interact with and protect this species.

Should You Try Growing Hansen’s Bird’s Beak?

While I’m all for growing native plants, Hansen’s bird’s beak presents some unique challenges that make it unsuitable for most home gardens:

  • Its hemiparasitic nature means it requires specific host plants to thrive
  • The complex ecological relationships it depends on are difficult to replicate in garden settings
  • As a rare species, disturbing wild populations for seeds or plants would be harmful to conservation efforts
  • Its annual nature and specialized requirements make cultivation extremely challenging

How You Can Help Instead

Rather than trying to grow Hansen’s bird’s beak in your garden, here are better ways to support this rare native:

  • Support habitat conservation efforts in California
  • Choose other native California plants that are more suitable for cultivation
  • Learn to identify Hansen’s bird’s beak so you can report sightings to local botanists or conservation groups
  • Participate in citizen science projects that monitor rare plant populations

Alternative Native Plants to Consider

If you’re interested in supporting California’s native plant heritage in your garden, consider these more garden-friendly alternatives that still provide ecological benefits:

  • California poppies for bright annual color
  • Native lupines for nitrogen fixation and pollinator support
  • California asters for late-season blooms
  • Native bunch grasses for habitat structure

The Bigger Picture

Hansen’s bird’s beak reminds us that not every native plant is meant for our gardens – and that’s perfectly okay! Some species are best appreciated and protected in their natural habitats. By understanding and respecting the needs of rare plants like Hansen’s bird’s beak, we become better stewards of California’s incredible botanical diversity.

The next time you’re exploring California’s natural areas, keep an eye out for this modest but important little plant. While you might not bring it home to your garden, you’ll be witnessing a small miracle of evolution and adaptation that deserves our admiration and protection.

Cordylanthus pilosus hansenii is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Cordylanthus pilosus hansenii is also known as:

Cordylanthus hansenii | USDA symbol: COHA

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Asteridae
Order: Scrophulariales
Family: Scrophulariaceae Juss. - Figwort family
Genus: Cordylanthus Nutt. ex Benth. - bird's-beak

Species: Cordylanthus pilosus A. Gray - hairy bird's-beak

Subspecies: Cordylanthus pilosus A. Gray ssp. hansenii (Ferris) T.I. Chuang & Heckard - Hansen's 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