CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record trifolium_buckwestiorum - Sat, Nov. 27, 2021 00:28 ET c
Trifolium buckwestiorum
common nameSanta Cruz clover
CalPhotos image
more photos
Doreen L. Smith © 1997 Doreen L. Smith  Follow image link for photo data.
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
S2      ranking system key
global rank
G2     G2: 6-20 occurrences OR 1,000-3,000 individuals OR 2,000-10,000 acres
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (23):
Salinas (365B) 3612166, Spreckels (365C) 3612156, Seaside (366D) 3612157, Soquel (387B) 3612188, Santa Cruz (387E) 3612281, Mount Sizer (406A) 3712125, Loma Prieta (407D) 3712117, Castle Rock Ridge (408A) 3712221, Davenport (408C) 3712212, Felton (408D) 3712211, Ano Nuevo (409D) 3712213, Mindego Hill (428C) 3712232, Santa Rosa (501B) 3812246, Two Rock (502D) 3812237, Cazadero (519D) 3812351, Big Foot Mountain (535C) 3812372, Ornbaun Valley (536A) 3812383, Zeni Ridge (536B) 3812384, Mcguire Ridge (536C) 3812374, Gube Mountain (536D) 3812373, Eureka Hill (537A) 3812385, Philo (551C) 3912314, Laughlin Range (567D) 3912333
quad data info

Counties, states, regions:
Mendocino (MEN), Monterey (MNT), Santa Clara (SCL), Santa Cruz (SCR), San Mateo (SMT), Sonoma (SON)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Broadleafed upland forest (BUFrs)
•Cismontane woodland (CmWld)
•Coastal prairie (CoPrr)/gravelly, margins
blooming period Apr-Oct  
elevation range105 - 610 meters
Threatened by land clearing and non-native plants. Possibly threatened by road maintenance. See Madroņo 39(2):90 (1992) for original description.
full nameTrifolium buckwestiorum Isely
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  TRBU3 Element Code  PDFAB402W0
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 Sat, Nov. 27, 2021 from

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