Taxon Report

Silene serpentinicola T. W. & J. P. Nelson

serpentine catchfly

Print Report


©2008 Norman Jensen

Taxon Summary

Silene serpentinicola, commonly known as serpentine catchfly, is a perennial rhizomatous herb in the Caryophyllaceae that is found in California and elsewhere. It occurs within Chaparral, and Lower montane coniferous forest, growing at elevations from 145 to 1650 meters. Silene serpentinicola is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.


  Classification

Scientific Name:
Silene serpentinicola T. W. & J. P. Nelson
Common Name:
serpentine catchfly
Family: Caryophyllaceae
Element Code: PDCAR0U2B0
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial rhizomatous herb
Blooming Period: May-Jul May-Jul
Elevation: 145-1650 (475-5415)
General Habitats: Chaparral, Lower montane coniferous forest
Microhabitat: Gravelly (sometimes), Openings, Rocky (sometimes), Serpentine
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 55
Element Occurrence Ranks:
   Excellent (A) 1
   Good (B) 4
   Fair (C) 0
   Poor (D) 0
   None (X) 0
   Unknown (U) 50
California Endemic:  False
California Counties and Islands: Name (Code)
Del Norte (DNT)
Quads: Name (Quad Code)
Cant Hook Mtn. (4112368), Childs Hill (4112461), Gasquet (4112378), High Divide (4112481), High Plateau Mtn. (4112388), Hiouchi (4112471), Klamath Glen (4112358)?

Threat List Data from the CNDDB

Threat List Total: 7
EOs with Threat Listed: Total EOs % of EOs
7 13 %
Foot traffic/trampling 4 7%
Improper burning regime 2 3%
ORV activity 2 3%
Other 2 3%
Road/trail construction/maint. 1 1%
Logging 1 1%
Non-native plant impacts 1 1%

Notes

"Red Hill" location (722C?) recorded by Jepson (#2904, JEPS) needs confirmation. Locally common in the Smith River Basin of Northwestern California. Threatened by foot traffic. Possibly threatened by fire suppression. Although distinct, formerly confused with S. californica and S. hookeri ssp. pulverulenta. Not in TJM (1993). See MadroƱo 51:384 (2004) for original description, and Acta Mus. Richnov., Sect. natur. 12(1):1-6 (2005) for treatment of junior homonym; S. boyd-klineana.
Threats:
Taxonomy:

Selected References

USFS Potential Species of Conservation Concern Profile
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 January 2025].