Species Details

Trifolium piorkowskii

maverick clover

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Photo by ©2018 Al Keuter  max-height:128px; max-width:145px;
©2018 Al Keuter
Photo by ©2018 Al Keuter  max-height:128px; max-width:145px;
©2018 Al Keuter
Photo by ©2018 Al Keuter  max-height:128px; max-width:145px;
©2018 Al Keuter
Scientific Name:
Trifolium piorkowskii Rand. Morgan & A.L. Barber
Common Name:
maverick clover
Family: Fabaceae
Element Code: PDFAB40410
USDA Plants Symbol: TRPI2
Synonyms/Other Names:
CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G2
State Rank:
S2
Other Status:
CRPR Changes:
changed from CBR to 1B.2 on 2018-01-30
Considered But Rejected on 2016-11-10
Add Date: 2016-11-10
Date Edited: 2021-10-08
Lifeform: annual herb
Blooming Period: Apr-May
Elevation:
160 - 680 meters
525 - 2230 feet
General Habitat:
  • Chaparral
  • Cismontane woodland
  • Lower montane coniferous forest
  • Valley and foothill grassland (mesic)
  • Vernal pools
General Micro Habitat:
Micro Habitat:
  • Clay
  • Openings
  • Streambanks (often)
  • Volcanic
Notes:

Possibly threatened by grazing, trampling, vehicles, and mining. Similar to, and previously identified as, T. fucatum. See Novon 23(1):65-69 (2014) for original description.

Threats:
Taxonomy:
Other:
Total Occurrences: 5
Element Occurrence Ranks:
A B C D X U
0 0 0 0 0 5
Occurrence Status:
Historical >20 Years 4
Recent <=20 Years 1
Presence:
Presumed Extant 5
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Shasta (SHA)
Quads: Name (Quad Code)
Oak Run (4012261), Redding (4012254), Shingletown (4012148), Tuscan Buttes Ne (4012241)
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