CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record astragalus_tener_var._ferrisiae - Mon, Dec. 6, 2021, 22:46 ET b
Astragalus tener var. ferrisiae
common nameFerris' milk-vetch
CalPhotos image
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life formannual herb
CA Rare Plant Rank
List 1B.1
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.1: Seriously endangered in California
state rank
S1      ranking system key
global rank
G2T1      ranking system key
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (17):
Saxon (497B) 3812146, Liberty Island (497C)* 3812136, Dozier (498D)* 3812137, Davis (513C) 3812156, Sacramento West (513D) 3812155, Dunnigan (530B)* 3812188, Yuba City (544A)* 3912125, Colusa (546A)* 3912221, Arbuckle (546D)* 3912211, Manor Slough (547A) 3912223, Biggs (560B) 3912146, West Of Biggs (561A) 3912147, Butte City (561B) 3912148, Pennington (561D) 3912137, Logandale (562B) 3912242, Llano Seco (577C) 3912158, Nord (593C)* 3912178
quad data info

Counties, states, regions:
Butte (BUT), Colusa (COL), Glenn (GLE), Solano (SOL)*, Sutter (SUT), Yolo (YOL)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Meadows and seeps (Medws)(vernally mesic)
•Valley and foothill grassland (VFGrs)(subalkaline flats)
blooming period Apr-May  
elevation range2 - 75 meters
Rediscovered in 1989 by V. Oswald in Butte Sink WA (DFG); known only from six extant occurrences. Most historical habitat destroyed by agriculture. See Brittonia 42(2):100-104 (1990) for original description, and Systematic Botany 17(3):367-379 (1992) for distributional information.
full nameAstragalus tener Gray var. ferrisiae Liston
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  ASTEF Element Code  PDFAB0F8R3
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 Mon, Dec. 6, 2021 from

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