Madia exigua

Rarity

CNPS-EB: C

20 current natural populations

Criteria:

Small Populations

Observations

Key

Ecology

Flowers April - July

Habitats:

Grassland (Annual or Perennial)
Sand, Sandstone
Serpentine or Serpentine-derived soils

All Madia

M. anomala (A1x)

M. exigua

M. radiata (*A1x)

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Briones Rgnl Park	30	2022-04-23
Carquinez Strait Rgnl Park	1	2005-05-13
Carquinez Strait Rgnl Park	2	2004-05-09
Kennedy Grove Rgnl Park	5	2020-05-20
Knowland Park, Oakland	6	2020-05-20
Las Trampas Rgnl Wilderness	7	2016-05-14
Las Trampas Rgnl Wilderness	32	2020-05-23
Leona Heights Rgnl Park, or nearby	17	2019-05-17
Los Mochos Boy Scout Camp, Mines Rd	8	2022-04-16
Los Mochos Boy Scout Camp, Mines Rd	35	2023-05-20
Mines Road/Arryo Mocho	9	2003-05-24
Mt. Diablo State Park - North side	29	2022-05-29
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	31	2017-05-13
Mt. Diablo State Park - West side	33	2023-05-01
Ohlone Rgnl Wilderness	27	2021-05-11
Ohlone Rgnl Wilderness	28	2020-05-22
Ohlone Rgnl Wilderness	34	2023-05-26
Ohlone Rgnl Wilderness	36	2023-05-26
Siesta Valley, Upper - EBMUD land	23	2019-05-14
Sunol Rgnl Wilderness	22	2000-12-31
Black Diamond Rgnl Preserve	4	1999-05-09	Historic
El Cerrito Hills	24	1933-05-31	Historic
Mines Road/Arryo Mocho	25	1957-05-20	Historic
Mt. Diablo State Park - North side	11	1931-05-19	Historic
Mt. Diablo State Park - North side	16	1993-05-08	Historic
Mt. Diablo State Park - South side	12	1995-05-29	Historic
Mt. Diablo State Park - South side	13	1998-06-18	Historic
Mt. Diablo State Park - South side	14	1933-05-08	Historic
Mt. Diablo State Park - South side	15	1932-04-27	Historic
Mt. Diablo State Park - Summit and Upper area - 2500 ft and abo	10	1978-05-14	Historic
Mt. Wanda, Martinez	3	1992-12-31	Historic
Ohlone Rgnl Wilderness	18	1992-05-24	Historic
Ohlone Rgnl Wilderness	26	2021-04-28	ID Uncertain
Pleasanton Ridge Rgnl Park	19	1993-05-17	Historic
Pt. Richmond Area	20	1984-12-31	Historic
Redwood Rgnl Park	21	1981-05-31	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.