Species Details

Puccinellia howellii

Howell's alkali grass

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Photo of Puccinellia howellii
©1991 Dean Wm. Taylor
Photo of Puccinellia howellii
©2011 Steve Matson
Photo of Puccinellia howellii
©2011 Steve Matson
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
JFMAMJJASOND
Elevation:
490 - 490 meters
1610 - 1610 feet
General Habitats:
  • Meadows and seeps (mineralized)
Microhabitat Details:
Microhabitat:
Notes:
Known from only one occurrence near Whiskeytown. Threatened by highway runoff pollution. See MadroƱo 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 Total: 9
Total EOs % of EOs
EOs with Threat Listed: 1 100 %
THREAT LIST:
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%
Total Occurrences: 1
Element Occurrence Ranks:
A B C D X U
0 1 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 1
Presence:
Presumed Extant 1
Possibly Extirpated 0
Presumed Extirpated 0
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.
Presumed Extant
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