Taxon Details

Trifolium bolanderi

Bolander's clover

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Taxon Summary:

Trifolium bolanderi, commonly known as Bolander's clover, is a perennial herb in the Fabaceae that is found only in California. It occurs within Lower montane coniferous forest, Meadows and seeps, and Upper montane coniferous forest, growing at elevations from 2039 to 2600 meters. Trifolium bolanderi is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Trifolium bolanderi Gray
Common Name: Bolander's clover
Family:	Fabaceae
Element Code:	PDFAB400G0
USDA Plants Symbol:	TRBO3
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	None
Global Rank:	G3
State Rank:	S3
Other Status:	SB_SBBG; SB_USDA; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2022-12-06

Ecology and Life History

Lifeform: perennial herb

Blooming Period: Jun-Aug

Elevation:
2039 - 2600 meters
6690 - 8530 feet

General Habitats:

Lower montane coniferous forest
Meadows and seeps
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Mesic

Notes

Notes: Threatened by foot traffic, grazing and trampling, and possibly threatened by logging. See Proceedings of the American Academy of Arts and Sciences 7:335 (1868) for original description, and Madroño 40(3):166-173 (1993) for ecological discussion.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	8
	Total EOs	% of EOs
EOs with Threat Listed:	29	91 %
Grazing	22	68%
Foot traffic/trampling	7	21%
Other	4	12%
Road/trail construction/maint.	1	3%
Logging	1	3%
ORV activity	1	3%
Biocides	1	3%
Development	1	3%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					32
A	B	C	D	X	U
2	17	4	0	0	9

Occurrence Status:
Historical >20 Years	32
Recent <=20 Years	0

Presence:
Presumed Extant	32
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Fresno (FRE), Madera (MAD), Mariposa (MPA)

Quads: Name (Quad Code)
Cattle Mtn. (3711952), El Capitan (3711966), Half Dome (3711965), Little Shuteye Peak (3711944), Nelson Mtn. (3711911), Patterson Mtn. (3611981), Squaw Dome (3711943), Timber Knob (3711953), White Chief Mtn. (3711945)

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