Panicum acuminatum var. thermale

Scientific Name: Panicum acuminatum Sw. var. thermale (Bol.) Wipff
Common Name: Geysers panicum
Family:	Poaceae
Element Code:	PMPOA24028
USDA Plants Symbol:
Synonyms/Other Names: Panicum thermale Boland. Dichanthelium lanuginosum var. thermale

CA Rare Plant Rank:	1B.2
Fed List:	None
State List:	CE (1978-09-01)
Global Rank:	G5T2Q
State Rank:	S2
Other Status:
CRPR Changes: changed from 1B.1 to 1B.2 on 2012-09-12
Add Date:	1974-01-01
Date Edited:	2022-05-05

Lifeform: annual/perennial herb
Blooming Period: Jun-Aug
Elevation: 305 - 2470 meters 1000 - 8105 feet
General Habitat: Closed-cone coniferous forest Riparian forest Valley and foothill grassland
General Micro Habitat: geothermally-altered soil
Micro Habitat: Streambanks (sometimes)

Notes: Known only from The Geysers and Lassen Volcanic NP geothermal areas. Does plant occur on Mt. Shasta (SIS Co.)? Plants from Blaney Meadows (FRE Co.) need verification. Threatened by non-native plants. A synonym of Panicum acuminatum var. acuminatum in TJM (1993). See Proceedings of the California Academy of Sciences 2:181 (1862) for original description, Madroño 23(3):151 (1975) for taxonomic treatment, and Proceedings of the CNPS Conservation Conference, pp. 256-263 (2009) for information on population dynamics and monitoring.
Threats:
Taxonomy:
Other:

Occurrence Status:
Historical >20 Years	7
Recent <=20 Years	4

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Lake (LAK), Plumas (PLU), Shasta (SHA), Sonoma (SON), Tehama (TEH)

Quads: Name (Quad Code)
Lassen Peak (4012145), Reading Peak (4012144), The Geysers (3812277), Whispering Pines (3812276)

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

Presumed Extant

Counties Quads

CNPS Status Review:

CRPR List Change on 2012-09-12