Taxon Report

Clarkia franciscana Lewis & Raven

Presidio clarkia

Print Report



  Classification

Scientific Name:
Clarkia franciscana Lewis & Raven
Common Name:
Presidio clarkia
Family: Onagraceae
Element Code: PDONA050H0
USDA Plants Symbol: CLFR3
Synonyms/Other Names:

Ecology and Life History

Lifeform: annual herb
Blooming Period: May-Jul May-Jul
Elevation: 25-335 (80-1100)
General Habitats: Coastal scrub, Valley and foothill grassland
Microhabitat:
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 4
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 2
   Fair (C) 1
   Poor (D) 0
   None (X) 1
   Unknown (U) 0
California Endemic:  True
California Counties and Islands: Name (Code)
Alameda (ALA), San Francisco (SFO)
Quads: Name (Quad Code)
Oakland East (3712272), San Francisco North (3712274)

Threat List Data from the CNDDB

Threat List Total: 7
EOs with Threat Listed: Total EOs % of EOs
3 75 %
Foot traffic/trampling 3 75%
Non-native plant impacts 3 75%
Road/trail construction/maint. 2 50%
Development 1 25%
ORV activity 1 25%
Other 1 25%
Recreational use (non-ORV) 1 25%

Notes

Threatened by Army activities, vehicles, urbanization and non-native plants. See Brittonia 10:7-13 (1958) for original description, and MadroƱo 39(1):1-7 (1992) for information on ALA Co. occurrence.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 28 December 2024].