CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-16sep 9-2-16
Status: record calystegia_collina_ssp._oxyphylla - Thu, Oct. 27, 2016 16:31 ET c
Calystegia collina ssp. oxyphylla
common nameMt. Saint Helena morning-glory
CalPhotos image
more photos
© 1997 Dean Wm. Taylor  Follow image link for photo data.
life form rhizomatous herb
CA Rare Plant Rank
List 4.2
LIST 4: Limited distribution (Watch List).
     0.2: Fairly endangered in California
state rank
S3      ranking system key
global rank
G4T3      ranking system key
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Counties, states, regions:
Lake (LAK), Mendocino (MEN), Marin (MRN), Napa (NAP), San Benito (SBT), Sonoma (SON)
  • Pending additional quad-level data, only county data are being provided for List 4 plants.
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Chaparral (Chprl)
•Lower montane coniferous forest (LCFrs)
•Valley and foothill grassland (VFGrs)/serpentinite
blooming period Apr-Jun  
elevation range279 - 1010 meters
Threatened by road maintenance. Potentially threatened by wind energy development. See Kew Bulletin 35(2):328 (1980) for original description.
full nameCalystegia collina (Greene) Brummitt ssp. oxyphylla Brummitt
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  CACOO Element Code  PDCON04032
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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Suggested citation: California Native Plant Society (CNPS). 2016. Inventory of Rare and Endangered Plants (online edition, v7-16sep). California Native Plant Society. Sacramento, CA. Accessed on Thu, Oct. 27, 2016 from

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