Taxon Report

Funastrum crispum (Benth.) Schltr.

wavyleaf twinvine

Print Report


© 2016 Keir Morse

Taxon Summary

Funastrum crispum, commonly known as wavyleaf twinvine, is a perennial herb in the Apocynaceae that is found in California and elsewhere. It occurs within Chaparral, and Pinyon and juniper woodland, growing at elevations from 1165 to 1840 meters. Funastrum crispum is ranked 2B.2, Plants Rare, Threatened, or Endangered in California, But More Common Elsewhere; Moderately threatened in California.


  Classification

Scientific Name:
Funastrum crispum (Benth.) Schltr.
Common Name:
wavyleaf twinvine
Family: Apocynaceae
Element Code: PDASC0F020
USDA Plants Symbol: FUCR
Synonyms/Other Names:

Ecology and Life History

Lifeform: perennial herb
Blooming Period: May-Aug May-Aug
Elevation: 1165-1840 (3820-6035)
General Habitats: Chaparral, Pinyon and juniper woodland
Microhabitat:
Microhabitat Details:

Conservation Status

CA Rare Plant Rank: 2B.2
Global Rank: G4
State Rank:
S1
State List: None
Fed List: None
Other Status: SB_CalBG/RSABG
CRPR Changes:
  • added to 2B.2 on 2016-12-29

Occurrence Data from the CNDDB

Total Occurrences: 5
Element Occurrence Ranks:
   Excellent (A) 0
   Good (B) 0
   Fair (C) 1
   Poor (D) 0
   None (X) 0
   Unknown (U) 4
California Endemic:  False
California Counties and Islands: Name (Code)
Riverside (RIV)
Quads: Name (Quad Code)
Martinez Mtn. (3311653), Toro Peak (3311654)

Threat List Data from the CNDDB

Threat List Total: 6
EOs with Threat Listed: Total EOs % of EOs
3 60 %
Foot traffic/trampling 3 60%
Development 2 40%
Wood cutting or brush clearing 2 40%
Altered flood/tidal/hydrologic regime 1 20%
Non-native plant impacts 1 20%
Over-collecting/poaching 1 20%

Notes

Discovered in CA in 2006 by Jordan Zylstra. Potentially threatened by development. Possibly threatened by recreational activities and vehicles. See Plantas Hartwegianas imprimis Mexicanas 291 (1849) for original description, and Repertorium Specierum Novarum Regni Vegetabilis 13(363/367):284 (1914) for revised nomenclature.
Threats:
Taxonomy:

Selected References

CRPR List Addition on 2016-12-29
Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 5 February 2025].