Plagiobothrys tenellus

Pacific popcornflower, slender popcornflower

Family:Boraginaceae

Rarity

CNPS-EB: C

13 current natural populations

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus Plagiobothrys
- Plagiobothrys tenellus
CCH2

Key

Ecology

Flowers March - June

Habitats:

Miscellaneous

All Plagiobothrys

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Diablo Foothills Rgnl Park	4	2023-04-05
Las Trampas Rgnl Wilderness	11	2023-05-20
Lawrence Livermore Lab, Site 300, Corral Hollow	3	2021-12-31
Lime Ridge area	7	2004-04-13
Los Mochos Boy Scout Camp, Mines Rd	10	2025-03-23
Los Mochos Boy Scout Camp, Mines Rd	20	2025-03-23
Los Mochos Boy Scout Camp, Mines Rd	21	2025-04-13
Los Vaqueros Watershed	12	2006-04-22
Ohlone Rgnl Wilderness	14	2020-04-23
Ohlone Rgnl Wilderness	17	2020-04-23
Ohlone Rgnl Wilderness	18	2020-04-24
Ohlone Rgnl Wilderness	19	2024-04-19
Vasco Caves Rgnl Park	22	2025-03-28
Antioch Dunes	1	1932-12-31	Historic
Byron - other or unknown sites	2	1980-12-31	Historic
Leona Heights Rgnl Park, or nearby	9	1967-05-31	Historic
Mines Road/Arryo Mocho	13	1973-04-18	Historic
Mt. Diablo State Park - East side	6	1999-12-31	Historic
Mt. Diablo State Park - South side	5	1933-05-08	Historic
Pinole - EBMUD land nearby	16	2008-12-31	ID Uncertain
San Pablo Ridge, Orinda	15	1951-03-17	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.