Species Details

Pleuropogon refractus

nodding semaphore grass

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Photo by ©2004 Dean Wm. Taylor  max-height:128px; max-width:145px;
©2004 Dean Wm. Taylor
Lifeform: perennial rhizomatous herb
Blooming Period: (Mar)Apr-Aug
Elevation:
0 - 1600 meters
0 - 5250 feet
General Habitat:
  • Lower montane coniferous forest
  • Meadows and seeps
  • North Coast coniferous forest
  • Riparian forest
General Micro Habitat:
Micro Habitat:
  • Mesic
Notes:
Threatened by roadside mowing, logging and associated road usage.
Threats:
Taxonomy:
Other:
Total Occurrences: 0
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 0
Occurrence Status:
Historical >20 Years 0
Recent <=20 Years 0
Presence:
Presumed Extant 0
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR), Washington (WA)
California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Marin (MRN), Mendocino (MEN), Sonoma (SON)
Quads: Name (Quad Code)
Takilma (4212315), Arcata North (4012481), Arcata South (4012471), Blue Creek Mtn. (4112347), Blue Lake (4012388), Board Camp Mtn. (4012366), Bolinas (3712286), Bridgeville (4012347), Bull Creek (4012431), Capetown (4012443), Childs Hill (4112461), Comptche (3912335), Cotati (3812236), Crannell (4112411), Denny (4012384), Dutchmans Knoll (3912356), Eureka (4012472), Fern Canyon (4112441), Ferndale (4012453), Fields Landing (4012462), Fort Bragg (3912347), Grouse Mtn. (4012376), Hales Grove (3912377), High Divide (4112481), Hiouchi (4112471), Holter Ridge (4112338), Hopkins Butte (4112325), Hydesville (4012451), Iaqua Buttes (4012368), Johnsons (4112337), Korbel (4012378), Lord-ellis Summit (4012387), Mad River Buttes (4012367), Mallo Pass Creek (3912316), Maple Creek (4012377), McWhinney Creek (4012461), Noyo Hill (3912346), Orick (4112431), Owl Creek (4012358), Panther Creek (4112318), Redcrest (4012348), Requa (4112451), Rodgers Peak (4112421), Scotia (4012441), Sister Rocks (4112462), Smith River (4112482), Taylor Peak (4012442), Tish Tang Point (4112315), Trinity Mtn. (4112314), Westport (3912367)
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