Taxon  Report   6536    
Piperia unalascensis  (Spreng.) Rydb.
Alaska piperia,  Alaska rein orchid, Rein orchid, Slender spire orchid
Piperia unalascensis
© 1998 James B. Gratiot
Photos from
CalPhotos / Calflora
Piperia unalascensis
© 2006 Steve Matson
Piperia unalascensis
© 2018 Julie Kierstead Nelson
Piperia unalascensis, a monocot, is a perennial herb that is native to California, is also found elsewhere in North America and beyond.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Piperia unalascensis
© 2006 Steve Matson
Genus: Piperia
Communities: Chaparral, Valley Grassland, Foothill Woodland, Southern Oak Woodland, Northern Oak Woodland, Mixed Evergreen Forest, Yellow Pine Forest, Red Fir Forest, wetland-riparian

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Habenaria unalascensis
PLANTS: Platanthera cooperi
PLANTS: Platanthera unalascensis
. . .
More information about  Piperia unalascensis
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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 16, 2019).