Species Details

Claytonia peirsonii ssp. peirsonii

Peirson's spring beauty

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Scientific Name:
Claytonia peirsonii (Munz & I.M. Johnst.) Stoughton ssp. peirsonii
Common Name:
Peirson's spring beauty
Family: Montiaceae
Element Code: PDPOR03121
USDA Plants Symbol:
Synonyms/Other Names:
Fed List: None
State List: None
Global Rank: G2G3T2
State Rank:
S2
CA Rare Plant Rank: 1B.2
Other Status: SB_CalBG/RSABG; USFS_S
CRPR Changes:
changed from 3.1 to 1B.2 on 2019-07-26
changed from 1B.1 to 3.1 on 2009-10-22
Add Date: 1974-01-01
Date Edited: 2021-06-03
Lifeform: perennial herb
Blooming Period: (Mar)May-Jun
Elevation:
1510 - 2745 meters
4955 - 9005 feet
General Habitat:
  • Subalpine coniferous forest
  • Upper montane coniferous forest
General Micro Habitat:
Micro Habitat:
  • Granitic
  • Metamorphic
  • Scree
  • Talus
Notes:

Threatened by foot traffic, recreational activities, and proposed ski area expansion. See Bulletin of the Torrey Botanical Club 49(12):352 (1923) for original description, and Systematic Botany 42(2):283-300 (2017) for revised nomenclature and taxonomic treatment.

Threats:

Taxonomy:
Other:
References:

Total Occurrences: 9
Element Occurrence Ranks:
A B C D X U
0 6 0 0 0 3
Occurrence Status:
Historical >20 Years 1
Recent <=20 Years 8
Presence:
Presumed Extant 9
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Los Angeles (LAX), San Bernardino (SBD)
Quads: Name (Quad Code)
Crystal Lake (3411737), Cucamonga Peak (3411725), Juniper Hills (3411748), Telegraph Peak (3411735), Valyermo (3411747), Waterman Mtn. (3411738)
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