Pleuropogon refractus
Common Name: nodding semaphore grass
Family: Poaceae
Synonyms: Lophochlaena refracta var. refracta
Element Code: PMPOA4Y080
Full Name: Pleuropogon refractus (Gray) Benth.

2004 Dean Wm. Taylor
Biology Glossary
  • Lifeform: perennial rhizomatous herb
  • Blooming Period: (Mar)Apr-Aug
  • Habitat: Mesic.
    • Lower montane coniferous forest
    • Meadows and seeps
    • North Coast coniferous forest
    • Riparian forest
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences:
  • Element Occurrence Ranks:
    A B C D X U
  • Population Status:
    >20 yrs
    <=20 yrs
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
Notes Glossary
  • Threatened by roadside mowing, logging and associated road usage.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1974-01-01
  • Last Update: 2011-04-01
Location Glossary
  • Elevation: 0 - 1600 meters
  • California Endemic: no
  • Other States: Oregon, Washington
  • California Counties and Islands:   name (code)
    Del Norte (DNT),  Humboldt (HUM),  Mendocino (MEN),  Marin (MRN)
  • Quads:   name (DWR code) USGS code
    Bolinas (467B) 3712286,  Cotati (501C) 3812236,  Mallo Pass Creek (552C) 3912316,  Noyo Hill (568B) 3912346,  Comptche (568D) 3912335,  Dutchmans Knoll (584C) 3912356,  Redcrest (635B) 4012348,  Scotia (636A) 4012441,  Bull Creek (636D) 4012431,  Capetown (637A) 4012443,  Board Camp Mtn. (652B) 4012366,  Mad River Buttes (653A) 4012367,  Iaqua Buttes (653B) 4012368,  Owl Creek (653C) 4012358,  McWhinney Creek (654A) 4012461,  Fields Landing (654B) 4012462,  Hydesville (654D) 4012451,  Ferndale (655D) 4012453,  Denny (669B) 4012384,  Grouse Mtn. (670C) 4012376,  Lord-ellis Summit (671A) 4012387,  Blue Lake (671B) 4012388,  Korbel (671C) 4012378,  Maple Creek (671D) 4012377,  Arcata North (672A) 4012481,  Arcata South (672D) 4012471,  Trinity Mtn. (686C) 4112314,  Hopkins Butte (687A) 4112325,  Tish Tang Point (687D) 4112315,  Panther Creek (688C) 4112318,  Rodgers Peak (689A) 4112421,  Crannell (689D) 4112411,  Blue Creek Mtn. (705A) 4112347,  Johnsons (705D) 4112337,  Fern Canyon (706A) 4112441,  Orick (706D) 4112431,  Childs Hill (723A) 4112461,  Requa (723D) 4112451,  High Divide (740A) 4112481,  Smith River (740B) 4112482
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable. This data should NOT be substituted for pre-project review or for on-site surveys.
Includes unprocessed quads for CRPR 3 and 4 plants; unprocessed location data has not been quality controlled and may contain errors.
Presumed Extant Presumed Extirpated or Unknown 1389
Links to Leading Resources of Taxon Information
Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03). Website [accessed ].

3712286=Bolinas (467B) 3712286;3812236=Cotati (501C) 3812236;3912316=Mallo Pass Creek (552C) 3912316;3912346=Noyo Hill (568B) 3912346;3912335=Comptche (568D) 3912335;3912356=Dutchmans Knoll (584C) 3912356;4012348=Redcrest (635B) 4012348;4012441=Scotia (636A) 4012441;4012431=Bull Creek (636D) 4012431;4012443=Capetown (637A) 4012443;4012366=Board Camp Mtn. (652B) 4012366;4012367=Mad River Buttes (653A) 4012367;4012368=Iaqua Buttes (653B) 4012368;4012358=Owl Creek (653C) 4012358;4012461=McWhinney Creek (654A) 4012461;4012462=Fields Landing (654B) 4012462;4012451=Hydesville (654D) 4012451;4012453=Ferndale (655D) 4012453;4012384=Denny (669B) 4012384;4012376=Grouse Mtn. (670C) 4012376;4012387=Lord-ellis Summit (671A) 4012387;4012388=Blue Lake (671B) 4012388;4012378=Korbel (671C) 4012378;4012377=Maple Creek (671D) 4012377;4012481=Arcata North (672A) 4012481;4012471=Arcata South (672D) 4012471;4112314=Trinity Mtn. (686C) 4112314;4112325=Hopkins Butte (687A) 4112325;4112315=Tish Tang Point (687D) 4112315;4112318=Panther Creek (688C) 4112318;4112421=Rodgers Peak (689A) 4112421;4112411=Crannell (689D) 4112411;4112347=Blue Creek Mtn. (705A) 4112347;4112337=Johnsons (705D) 4112337;4112441=Fern Canyon (706A) 4112441;4112431=Orick (706D) 4112431;4112461=Childs Hill (723A) 4112461;4112451=Requa (723D) 4112451;4112481=High Divide (740A) 4112481;4112482=Smith River (740B) 4112482