Taxon Details

Bloomeria humilis

dwarf goldenstar

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Taxon Summary:

Bloomeria humilis, commonly known as dwarf goldenstar, is a perennial bulbiferous herb in the Themidaceae that is found only in California. It occurs within Chaparral, Coastal bluff scrub, and Valley and foothill grassland, growing at elevations from 10 to 120 meters. Bloomeria humilis is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.

Classification

Scientific Name: Bloomeria humilis Hoov.
Common Name: dwarf goldenstar
Family:	Themidaceae
Element Code:	PMLIL0B020
USDA Plants Symbol:	BLHU
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	CR (1978-11-01)
Global Rank:	G1
State Rank:	S1
Other Status:	SB_CalBG/RSABG; SB_SBBG; USFS_S
CRPR Changes:
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial bulbiferous herb

Blooming Period: Jun

Elevation:
10 - 120 meters
35 - 395 feet

General Habitats:

Coastal bluff scrub
Chaparral
Valley and foothill grassland

Microhabitat Details:

Microhabitat:

Notes

Notes: Known from only two occurrences in the Arroyo de la Cruz area; current status information needed. Threatened by potential development of habitat and foot traffic. Plant probably does not occur in MNT Co. See Plant Life 11:20-22 (1955) for original description.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	4
	Total EOs	% of EOs
EOs with Threat Listed:	2	33 %
Development	1	16%
Foot traffic/trampling	1	16%
Non-native plant impacts	1	16%
Road/trail construction/maint.	1	16%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					6
A	B	C	D	X	U
1	2	0	0	0	3

Occurrence Status:
Historical >20 Years	3
Recent <=20 Years	3

Presence:
Presumed Extant	6
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
San Luis Obispo (SLO)

Quads: Name (Quad Code)
Piedras Blancas (3512163), San Simeon (3512162)

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