Taxon Report

Polygala subspinosa Wats.

spiny milkwort

Print Report


Taxon Summary

Polygala subspinosa is a synonym of Rhinotropis subspinosa (S.Watson) J. R. Abbott .


  Classification

Scientific Name:
Polygala subspinosa Wats.
Common Name:
spiny milkwort
Family:
Element Code: PDPGL021Q0
USDA Plants Symbol:
Synonyms/Other Names:
  • Rhinotropis subspinosa (S.Watson) J. R. Abbott

Occurrence Data from the CNDDB

Total Occurrences: 71
Element Occurrence Ranks:
   Excellent (A) 4
   Good (B) 25
   Fair (C) 5
   Poor (D) 7
   None (X) 0
   Unknown (U) 30
California Endemic:  False
California Counties and Islands: Name (Code)
Quads: Name (Quad Code)

Threat List Data from the CNDDB

Threat List Total: 4
EOs with Threat Listed: Total EOs % of EOs
49 69 %
Grazing 25 35%
Other 21 29%
Road/trail construction/maint. 8 11%
Non-native plant impacts 5 7%
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 1 February 2025].