Species Details

Thermopsis robusta

robust false lupine

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Classification

Scientific Name: Thermopsis robusta Howell
Common Name: robust false lupine
Family:	Fabaceae
Element Code:	PDFAB3Z0D0
USDA Plants Symbol:	THRO4
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G2
State Rank:	S2
Other Status:	SB_UCSC; USFS_S
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: May-Jul

Elevation:
150 - 1500 meters
490 - 4920 feet

General Habitats:

Broadleafed upland forest
North Coast coniferous forest

Microhabitat Details:

Microhabitat:

Notes

Notes: Many collections historical. Threatened by road maintenance, logging and associated road usage. Not in TJM (1993); a synonym of T. macrophylla var. macrophylla in A California Flora (1959) by P. Munz. See Erythea 1:109 (1893) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	11
	Total EOs	% of EOs
EOs with Threat Listed:	76	73 %
Road/trail construction/maint.	55	52%
Logging	44	42%
Other	17	16%
Non-native plant impacts	9	8%
Biocides	5	4%
Grazing	2	1%
Improper burning regime	2	1%
ORV activity	2	1%
Mining	1	0%
Insufficient population/stand size	1	0%
Wood cutting or brush clearing	1	0%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					104
A	B	C	D	X	U
2	18	36	11	1	36

Occurrence Status:
Historical >20 Years	27
Recent <=20 Years	77

Presence:
Presumed Extant	103
Possibly Extirpated	1
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Mendocino (MEN), Siskiyou (SIS), Trinity (TRI)

Quads: Name (Quad Code)
Ah Pah Ridge (4112348), Bark Shanty Gulch (4112345), Bear Peak (4112365), Blake Mountain (4012355), Blue Creek Mtn. (4112347), Chimney Rock (4112356), Clear Creek (4112364), Deadman Point (4112384), Dillon Mtn. (4112355), Fish Lake (4112336), Hales Grove (3912377), Happy Camp (4112374), Hopkins Butte (4112325), Huckleberry Mtn. (4112363), Johnsons (4112337), Lincoln Ridge (3912366), Lonesome Ridge (4112346), Lord-ellis Summit (4012387), Maple Creek (4012377), Orleans (4112335), Slater Butte (4112373), Somes Bar (4112344), Ukonom Mtn. (4112354), Weitchpec (4112326)

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

Click on quad for name. Hold Shift Key to use mouse scroll wheel

CNPS Rare Plant Inventory