Taxon Details

Tauschia howellii

Howell's tauschia

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Taxon Summary:

Tauschia howellii, commonly known as Howell's tauschia, is a perennial herb in the Apiaceae that is found in California and elsewhere. It occurs within Subalpine coniferous forest, and Upper montane coniferous forest, growing at elevations from 1705 to 2500 meters. Tauschia howellii is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.

Classification

Scientific Name: Tauschia howellii (Coult. & Rose) Macbr.
Common Name: Howell's tauschia
Family:	Apiaceae
Element Code:	PDAPI27050
USDA Plants Symbol:	TAHO2
Synonyms/Other Names:
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	1B.3
Fed List:	None
State List:	None
Global Rank:	G2G3
State Rank:	S2S3
Other Status:	SB_SBBG; 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:
1705 - 2500 meters
5595 - 8205 feet

General Habitats:

Subalpine coniferous forest
Upper montane coniferous forest

Microhabitat Details:

Microhabitat:

Granitic
Gravelly

Notes

Notes: Possibly threatened by logging and vehicles. Candidate for state listing in OR. See Contributions from the Gray Herbarium 56:32 (1918) for revised nomenclature.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	5
	Total EOs	% of EOs
EOs with Threat Listed:	4	67 %
Foot traffic/trampling	3	50%
Logging	1	16%
ORV activity	1	16%
Other	1	16%
Recreational use (non-ORV)	1	16%

Occurrence Data from the CNDDB

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

Occurrence Status:
Historical >20 Years	4
Recent <=20 Years	2

Presence:
Presumed Extant	6
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Oregon (OR)

California Counties and Islands: Name (Code)
Fresno (FRE), Sierra (SIE), Siskiyou (SIS)

Quads: Name (Quad Code)
Bear Peak (4112365), English Peak (4112342), Forks of Salmon (4112333), Patterson Mtn. (3611981), Sierra City (3912056), Ukonom Lake (4112353)

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