CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record hesperolinon_adenophyllum - Wed, Dec. 1, 2021, 11:27 ET b
Hesperolinon adenophyllum
common nameglandular western flax
CalPhotos image
more photos
John Game © 2002 John Game  Follow image link for photo data.
life formannual herb
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S2S3   S2S3: Intermediate between S2 and S3
global rank
G2G3   G2G3: Intermediate between G2 and G3
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (26):
Clearlake Highlands (533B) 3812286, Whispering Pines (533C) 3812276, Kelseyville (534A) 3812287, Highland Springs (534B) 3812288, The Geysers (534D) 3812277, Bartlett Springs (548B)? 3912226, Bartlett Mountain (549A) 3912227, Upper Lake (549B) 3912228, Lakeport (549C) 3912218, Lucerne (549D) 3912217, Cow Mountain (550A) 3912321, Crockett Peak (565A) 3912247, Lake Pillsbury (565B) 3912248, Elk Mountain (565C) 3912238, Potato Hill (565D) 3912237, Van Arsdale Reservoir (566A) 3912341, Foster Mountain (566B) 3912342, Redwood Valley (566C) 3912332, Potter Valley (566D) 3912331, Willits (567A) 3912343, Burbeck (567B) 3912344, Greenough Ridge (567C) 3912334, Sanhedrin Mountain (582D) 3912351, Laytonville (583B) 3912364, Longvale (583C) 3912354, Fortuna (654C)* 4012452
quad data info

Counties, states, regions:
Humboldt (HUM)?*, Lake (LAK), Mendocino (MEN)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)
•Cismontane woodland (CmWld)
•Valley and foothill grassland (VFGrs)/usually serpentinite
blooming period May-Aug  
elevation range150 - 1315 meters
Threatened by geothermal development, recreation, and grazing. Potentially threatened by urban development. See Proceedings of the American Academy of Arts and Sciences 8:624-625 (1873) for original description, and University of California Publications in Botany 32:235-314 (1961) for taxonomic treatment.
full nameHesperolinon adenophyllum (Gray) Small
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  HEAD Element Code  PDLIN01010
CNPS chapter link chapter content  North Coast database for this species
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
search Google CNPS website    search Google entire web

Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Wed, Dec. 1, 2021 from

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