Species Details

Lupinus milobakeri

Milo Baker's lupine

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Species Description:

Lupinus milobakeri, commonly known as Milo Baker's lupine, is a annual herb in the Fabaceae that is found only in California. It occurs within Cismontane woodland (often roadsides), and Valley and foothill grassland, growing at elevations from 395 to 430 meters. Lupinus milobakeri is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Classification

Scientific Name: Lupinus milobakeri C.P. Sm.
Common Name: Milo Baker's lupine
Family:	Fabaceae
Element Code:	PDFAB2B4E0
USDA Plants Symbol:
Synonyms/Other Names: Lupinus milo-bakeri C.P. Sm.
Name Status:	JEP, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.1
Fed List:	None
State List:	CE (1987-01-01)
Global Rank:	G1Q
State Rank:	S1
Other Status:	SB_CalBG/RSABG; SB_UCBG
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2024-11-05

Ecology and Life History

Lifeform: annual herb

Blooming Period: Jun-Sep

Elevation:
395 - 430 meters
1295 - 1410 feet

General Habitats:

Cismontane woodland (often roadsides)
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Notes

Notes: Seriously threatened by urbanization, road maintenance, road widening, and herbicide application. Potentially threatened by competition. See L. luteolus in TJM (1993). See Four Seasons 1(3):8-9 (1965) and TJM2 for differentiation from L. luteolus.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	9
	Total EOs	% of EOs
EOs with Threat Listed:	9	82 %
Non-native plant impacts	7	63%
Road/trail construction/maint.	4	36%
Biocides	3	27%
Grazing	2	18%
Wood cutting or brush clearing	2	18%
Agriculture	1	9%
Foot traffic/trampling	1	9%
Vandalism/dumping/litter	1	9%
Other	1	9%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					11
A	B	C	D	X	U
0	0	0	2	9	0

Occurrence Status:
Historical >20 Years	9
Recent <=20 Years	2

Presence:
Presumed Extant	2
Possibly Extirpated	9
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Colusa (COL), Mendocino (MEN)

Quads: Name (Quad Code)
Covelo East (3912372), Longvale (3912354), Wilbur Springs (3912214)

Notes:

Definitions of codes following a county and/or quad:
*		Presumed extirpated
(?)		Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.

Regional Map

Map

Presumed Extant

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CNPS Rare Plant Inventory