Cordylanthus pilosus subsp. pilosus

hairy bird's-beak

Family:Orobanchaceae

Rarity

CNPS-EB: C

13 current natural populations

Observations

Key

Ecology

Flowers July - September

Habitats:

Chaparral
Serpentine or Serpentine-derived soils
Woodland

All Cordylanthus

C. nidularius (*A1)
C. pilosus subsp. pilosus
C. rigidus subsp. rigidus (A2)

References

Synonyms

Cordylanthus pilosus subsp. diffusus

Populations

Key

Location	Pop ID	Last Recorded	Notes
Bishop Ranch Rgnl Park	2	2024-09-02
Bollinger Canyon, Moraga	12	2003-12-31
Briones Reservoir, EBMUD	1	2002-08-31
Diablo Foothills Rgnl Park	4	2025-09-21
Lafayette Ridge, Briones Rgnl Park	19	2022-08-18
Martinez - other or unknown sites	13	2012-07-26
Martinez - other or unknown sites	22	2025-08-02
Morgan Territory Rgnl Park	20	2021-06-28
Mt. Diablo State Park - North side	6	2025-06-25
Mt. Diablo State Park - North side	23	2025-07-15
San Pablo Reservoir - EBMUD	16	2005-05-26
Siesta Valley, Upper - EBMUD land	17	2017-12-31
Sunol Rgnl Wilderness	18	2003-08-31
Canyon Area	3	1993-12-31	Historic
EBMUD land on San Pablo Ridge	14	1993-12-31	Historic
EBMUD land on San Pablo Ridge	21	1999-12-31	Historic
El Sobrante	8	1999-12-31	Historic
Las Trampas Rgnl Wilderness	10	1995-12-31	Historic
Lime Ridge area	9	1998-10-18	Historic
Mt. Diablo State Park - East side	5	1995-10-22	Historic
Mt. Diablo State Park - South side	7	1999-12-31	Historic
San Pablo Reservoir - EBMUD	15	1999-12-31	Historic

The list of populations shows the distinct populations identified by the CNPS-EB Rare and Unusual Plants Committee. The locations in this list are very general. More specific location details can be obtained from the links in the Observations section (for some of these links, a login is required).

Font

Populations in bold type have precise coordinates available for field volunteers and researchers.

Populations in normal type are only known from a description of the location; no precise coordinates are available.

Background

Populations with a white background have been observed in the last 25 years.

Populations with a blue background have not been observed for at least 25 years.

Populations with an orange background have an uncertain location or identification, or are planted.

Columns

Pop ID is a label that identifies the population. Many locations have more than one population of a species, and the population ID is used to distinguish them.