Taxon  Report   1349    
Calystegia collina  (Greene) Brummitt  ssp. oxyphylla  Brummitt
Mount saint helena morning glory,  Mt. saint helena morning glory
Calystegia collina ssp. oxyphylla
© 2015 John Doyen
Photos from
CalPhotos / Calflora
Calystegia collina ssp. oxyphylla
© 2011 Vernon Smith
Calystegia collina ssp. oxyphylla
© 1997 Dean Wm. Taylor
Calystegia collina ssp. oxyphylla, a dicot, is a perennial herb (rhizomatous) that is native to California, is endemic (limited) to California.
CNPS Rare Plant Rank: 4.2 (limited distribution).   8th Edition

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Calystegia collina ssp. oxyphylla
© 2017 Adam Chasey
Communities: Chaparral

Serpentine affinity: 5.6; (strict endemic)

Name Status:
Accepted by JEF + CNPS + PLANTS

More information about  Calystegia collina ssp. oxyphylla
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Dec 14, 2018).

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