Plagiobothrys humistratus

low popcornflower, dwarf allocarya

Family:Boraginaceae

Rarity

CNPS-EB: A2

9 current natural populations

Criteria:

Limited/Threatened Habitat
Small Geographical Range

Observations

Key

Ecology

Flowers March - May

Habitats:

Vernal Pool

All Plagiobothrys

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Altamont Pass	16	2022-04-04
Brushy Peak - EBRPD	18	2024-03-25
Byron - other or unknown sites	17	2024-03-15
Los Vaqueros Watershed	12	2022-02-25
Los Vaqueros Watershed	15	2022-02-16
Marsh Creek State Park - formerly Cowell Ranch	3	2009-04-06
Pleasanton Ridge Rgnl Park	8	2001-05-07
Springtown Wetlands Preserve	7	2022-03-31
Warm Springs, Fremont	11	2019-05-20
Antioch - other or unknown sites	1	1884-12-31	Historic
Byron Hot Springs area	2	1993-03-28	Historic
Byron Hot Springs area	5	1989-03-28	Historic
Byron Hot Springs area	6	1989-03-29	Historic
Horse Valley - W of Brentwood, S of Antioch	4	1998-12-31	Historic
Livermore - other or unknown sites	13	1961-12-31	Historic
Maguire Peaks, Sunol Regional Wilderness	10	1993-04-06	Historic
Pinole Peak - EBMUD	9	1995-06-05	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.