Species Details

Pleuropogon hooverianus

North Coast semaphore grass

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Scientific Name:
Pleuropogon hooverianus (L. Benson) J.T. Howell
Common Name:
North Coast semaphore grass
Family: Poaceae
Element Code: PMPOA4Y070
USDA Plants Symbol: PLHO2
Synonyms/Other Names:
CA Rare Plant Rank: 1B.1
Fed List: None
State List: CT (2002-08-01)
Global Rank: G2
State Rank:
S2
Other Status: SB_BerrySB; SB_CalBG/RSABG
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-06-08
Lifeform: perennial rhizomatous herb
Blooming Period: Apr-Jun
Elevation:
10 - 671 meters
35 - 2200 feet
General Habitat:
  • Broadleafed upland forest
  • Meadows and seeps
  • North Coast coniferous forest
General Micro Habitat:
Micro Habitat:
  • Mesic
  • Openings
Notes:
Threatened by roadside maintenance, development, timber harvest, feral pigs, and non-native plants. See American Journal of Botany 28:360 (1941) for original description, Leaflets of Western Botany 4(10):247 (1946) for revised nomenclature, and Taxon 27(4):375 (1978) for alternate nomenclature.
Threats:
Taxonomy:
Other:
Total Occurrences: 27
Element Occurrence Ranks:
A B C D X U
3 13 3 1 3 4
Occurrence Status:
Historical >20 Years 9
Recent <=20 Years 18
Presence:
Presumed Extant 24
Possibly Extirpated 3
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Humboldt (HUM), Marin (MRN), Mendocino (MEN), Sonoma (SON)
Quads: Name (Quad Code)
Bolinas (3712286), Cahto Peak (3912365), Camp Meeker (3812248), Comptche (3912335), Cotati (3812236), Elledge Peak (3912312), Garberville (4012317), Longvale (3912354), Navarro (3912325), Orrs Springs (3912323), Petaluma (3812226), Philo (3912314), San Geronimo (3812216), San Rafael (3712285), Willits (3912343)
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.

Map

Presumed Extant
Counties   Quads