Oxalis pilosa

hairy wood-sorrel

Family:Oxalidaceae

Rarity

CNPS-EB: B

9 current natural populations

Observations

Key

Ecology

Flowers February - September

Habitats:

Chaparral
Grassland (Annual or Perennial)
Scrub (Coastal or Interior)

All Oxalis

O. oregana (A1)

O. pilosa

References

Synonyms

Oxalis albicans subsp. pilosa
Oxalis corniculata subsp. pilosa
Oxalis corniculata var. wrightii

Populations

Key

Location	Pop ID	Last Recorded	Notes
Chabot Rgnl Park	12	2022-02-19
Chabot Rgnl Park	14	2022-06-11
Chabot Rgnl Park	16	2021-05-02
Chabot Rgnl Park	17	2021-05-02
Cull Canyon Rgnl Park	11	2003-07-07
Redwood Rgnl Park	5	2022-03-27
Redwood Rgnl Park	13	2022-03-28
Redwood Rgnl Park	18	2022-03-18
San Leandro Reservoir - EBMUD	15	2020-04-02
Chabot Rgnl Park	7	1981-04-20	Historic
Dimond Park/District, Oakland	1	1907-07-07	Historic
Leona Heights Rgnl Park, or nearby	3	1943-12-31	Historic
Niles Canyon area	9	1970-12-31	Historic
Niles Canyon area	10	1968-12-31	Historic
Oakland - other or unknown sites	4	1945-12-31	Historic
Oakland Hills - North	2	1917-12-31	Historic
Palomares Road - Stoneybrook Canyon	8	1969-12-31	Historic
Redwood Rgnl Park	6	1981-04-30	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.