Taxon  Report   1354    
Calystegia macrostegia  (Greene) Brummitt  ssp. amplissima  Brummitt
Island morning glory
Calystegia macrostegia ssp. amplissima
© 2011 Dylan Neubauer
Photos from
CalPhotos / Calflora
Calystegia macrostegia ssp. amplissima
© 2011 Neal Kramer
Calystegia macrostegia ssp. amplissima
© 2011 Neal Kramer
Calystegia macrostegia ssp. amplissima, a dicot, is a perennial herb that is native to California, is endemic (limited) to California.
CNPS Rare Plant Rank: 4.3 (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 macrostegia ssp. amplissima
© 2011 Vince Scheidt
Communities: Valley Grassland, Coastal Sage Scrub

Habitat: coastal

Name Status:
Accepted by JEF + CNPS + PLANTS

More information about  Calystegia macrostegia ssp. amplissima
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 19, 2018).