Taxon Details

Anthoxanthum nitens ssp. nitens

vanilla-grass

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Photo of Anthoxanthum nitens ssp. nitens

Taxon Summary:

Anthoxanthum nitens ssp. nitens, commonly known as vanilla-grass, is a perennial rhizomatous herb in the Poaceae that is found in California and elsewhere. It occurs within Meadows and seeps, growing at elevations from 1500 to 1895 meters. Anthoxanthum nitens ssp. nitens is ranked 2B.3, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Not very threatened in California.

Classification

Scientific Name: Anthoxanthum nitens (Weber) Y. Schouten & Veldkamp ssp. nitens
Common Name: vanilla-grass
Family:	Poaceae
Element Code:	PMPOA35041
USDA Plants Symbol:
Synonyms/Other Names: Hierochloe odorata
Name Status:	JEF, FNA, POWO, IPNI, Tropicos

Conservation Status

CA Rare Plant Rank:	2B.3
Fed List:	None
State List:	None
Global Rank:	G5T5
State Rank:	S2
Other Status:
CRPR Changes:
Add Date:	1994-01-01
Date Edited:	2023-05-02

Ecology and Life History

Lifeform: perennial rhizomatous herb

Blooming Period: Apr-Jul

Elevation:
1500 - 1895 meters
4920 - 6215 feet

General Habitats:

Meadows and seeps (mesic)

Microhabitat Details:

Microhabitat:

Notes

Notes: Unconfirmed specimens at the California Academy of Sciences have been recorded from Yosemite NP, San Pedro Valley (SMT Co.), and Fern Cyn. (MEN Co.); need verification. On review list in OR.
Threats: Possibly threatened by grazing and foot traffic.
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	4
	Total EOs	% of EOs
EOs with Threat Listed:	4	67 %
Grazing	2	33%
Recreational use (non-ORV)	2	33%
Foot traffic/trampling	1	16%
Logging	1	16%

Occurrence Data from the CNDDB

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

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), Washington (WA)

California Counties and Islands: Name (Code)
Del Norte (DNT), Shasta (SHA), Siskiyou (SIS)

Quads: Name (Quad Code)
Crescent City (4112472), Lassen Peak (4012145), Panther Rock (4112272), Seven Lakes Basin (4112224), Smith River (4112482), Thousand Lakes Valley (4012165)

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