Taxon Report

Solanum clokeyi Munz

island nightshade

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Taxon Summary

Solanum clokeyi, commonly known as island nightshade, is a perennial herb in the Solanaceae that is found in California and elsewhere. It occurs within Chaparral, Cismontane woodland, and Coastal scrub, growing at elevations from 2 to 395 meters. Solanum clokeyi is ranked 4.2, Plants of Limited Distribution, A Watch List; Moderately threatened in California.

Classification


Scientific Name:	Solanum clokeyi Munz
Common Name:	island nightshade
Family:	Solanaceae
Element Code:	PDSOL0Z450
USDA Plants Symbol:	SOCL
Synonyms/Other Names:

Ecology and Life History


Lifeform:	perennial herb
Blooming Period: Mar-Jul	Mar-Jul
Elevation:	2-395 (5-1295)
General Habitats:	Chaparral, Cismontane woodland, Coastal scrub
Microhabitat:
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.2
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: False
California Counties and Islands: Name (Code)
Santa Barbara (SBA)
Quads: Name (Quad Code)
Santa Cruz Island B (3311986), Santa Cruz Island C (3311985), Santa Rosa Island East (3311988), Santa Rosa Island North (3312081)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



Threatened by feral herbivores. S. xanti complex needs taxonomic study. A synonym of S. wallacei in The Jepson Manual.
Threats:

Taxonomy:

Selected References

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 October 2025].