Puccinellia howellii

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Scientific Name: Puccinellia howellii Davis
Common Name: Howell's alkali grass
Family:	Poaceae
Element Code:	PMPOA531A0
USDA Plants Symbol:	PUHO
Synonyms/Other Names:

Lifeform: perennial herb

Blooming Period: Apr-Jun

Elevation:
490 - 490 meters
1610 - 1610 feet

General Habitats:

Microhabitat Details:

Microhabitat:

Notes: Known from only one occurrence near Whiskeytown. Threatened by highway runoff pollution. See Madroño 37(1):55-58 (1990) for original description, 40(4):202-208 (1993) for confirmation of species validity, and 49(3):178-185 (2002) for ecological information.
Threats:
Taxonomy:

THREAT LIST:
Threat List Total:	9
	Total EOs	% of EOs
EOs with Threat Listed:	1	100 %
Altered flood/tidal/hydrologic regime	1	100%
Foot traffic/trampling	1	100%
Mining	1	100%
Non-native plant impacts	1	100%
ORV activity	1	100%
Other	1	100%
Recreational use (non-ORV)	1	100%
Road/trail construction/maint.	1	100%
Vandalism/dumping/litter	1	100%

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	1

California Endemic:

California Island:

States: Name (Code)
California (CA)

California Counties and Islands: Name (Code)
Shasta (SHA)

Quads: Name (Quad Code)
French Gulch (4012266)

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

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CNPS Rare Plant Inventory