Taxon Report

Jensia yosemitana (Gray) B.G. Baldwin

Yosemite tarplant

Print Report

Classification


Scientific Name:	Jensia yosemitana (Gray) B.G. Baldwin
Common Name:	Yosemite tarplant
Family:	Asteraceae
Element Code:	PDAST650J0
USDA Plants Symbol:	JEYO
Synonyms/Other Names:	Madia yosemitana Gray

Ecology and Life History


Lifeform:	annual herb
Blooming Period: (Apr)May-Jul	(Apr)May-Jul
Elevation:	1200-2300 (3935-7545)
General Habitats:	Lower montane coniferous forest, Meadows and seeps
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	3.2
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


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

Location


California Endemic: True
California Counties and Islands: Name (Code)
Amador (AMA), Calaveras (CAL), El Dorado (ELD), Fresno (FRE), Madera (MAD)?, Mariposa (MPA), Nevada (NEV), Tulare (TUL), Tuolumne (TUO)
Quads: Name (Quad Code)
Auberry (3711914), Bass Lake (3711935), Boards Crossing (3812032), Buckingham Mtn. (3711957), Camino (3812066), Case Mountain (3611847), Chicago Park (3912028), Courtright Reservoir (3711818), Dardanelle (3811937), Devils Nose (3812044), Echo Lake (3812071), El Capitan (3711966), Falls Ridge (3711984), Garnet Hill (3812043), Giant Forest (3611857), Half Dome (3711965), Hetch Hetchy Reservoir (3711986), Kaiser Peak (3711932), Lake Eleanor (3711987), Lodgepole (3611856), Loon Lake (3812083), Merced Peak (3711964), Mt. Lyell (3711963), Rough Spur (3611888), Shaver Lake (3711913), Sly Park (3812065), Ten Lakes (3711985), Wawona (3711956), Yosemite Falls (3711975)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



Move to CRPR 4? Easily overlooked; location and rarity information needed. Does plant occur in MAD Co.? A synonym of Madia yosemitana in TJM (1993). See Proceedings of the American Academy of Arts and Sciences 17:219 (1881-2) for original description, and Novon 9:462-471 (1999) for revised nomenclature.
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].