Taxon Report

Isomeris arborea Nutt. var. insularis Jeps.

Print Report


Taxon Summary

Isomeris arborea var. insularis was postponed. This Taxon is Populations of Isomeris arborea on the Channel Islands differ from mainland plants in fruit shape and likely warrant recognition as var. insularis. Taxonomy is being actively investigated.

  Classification
Scientific Name:
 Isomeris arborea Nutt. var. insularis Jeps.
Common Name:
Family: Asteraceae
Element Code:
USDA Plants Symbol:
Synonyms/Other Names:

Ecology and Life History
Lifeform:
Blooming Period:
Elevation: - (-)
General Habitats:
Microhabitat:
Microhabitat Details:

Conservation Status
CA Rare Plant Rank: PPD
Global Rank:
State Rank:
State List:
Fed List:
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)
Quads: Name (Quad Code)

Threat List Data from the CNDDB

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

Notes
Threats:
Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2026. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 24 May 2026].