Taxon Report

Thelypodium milleflorum A. Nels.

many-flowered thelypodium

Print Report

Classification


Scientific Name:	Thelypodium milleflorum A. Nels.
Common Name:	many-flowered thelypodium
Family:	Brassicaceae
Element Code:	PDBRA2N0A0
USDA Plants Symbol:	THMI5
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Apr-Jun	Apr-Jun
Elevation:	1220-2500 (4005-8205)
General Habitats:	Chenopod scrub, Great Basin scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	2B.2
Global Rank:	G5
State Rank:	S3?
State List:	None
Fed List:	None
Other Status:
CRPR Changes:	changed from 2.2 to 2B.2 on 2013-06-12

Occurrence Data from the CNDDB


Total Occurrences:	30
Element Occurrence Ranks:
Excellent (A)	2
Good (B)	4
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	24

Location


California Endemic: False
California Counties and Islands: Name (Code)
Lassen (LAS), Modoc (MOD), Mono (MNO)
Quads: Name (Quad Code)
Alameda Well (3811817), Bodie (3811921), Boyd Hot Spring (4112061), Calneva Lake (4012021), Chidago Canyon (3711854), Doyle (4012011), Eagleville (4112031), Herlong (4012022), Leonards Hot Springs (4112051), Little Mud Flat (4012042), Negit Island (3811911), Shaffer Mtn. (4012043), Wendel (4012032), Wendel Hot Springs (4012033)

Threat List Data from the CNDDB


Threat List Total:	5
EOs with Threat Listed:	Total EOs	% of EOs
	14	47 %
Other	8	26%
Grazing	5	16%
Road/trail construction/maint.	2	6%
ORV activity	2	6%
Mining	1	3%

Notes



Does plant occur in SIE Co.? Need quads for PLU Co. Threatened by agriculture and sand mining. Possibly threatened by pipeline construction and grazing. See Botanical Gazette 52(1):263 (1911) for original description, and Contributions from the Gray Herbarium 204:88-90 (1973) for taxonomic treatment.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 2 January 2025].