2021 Ron Vanderhoff 2020 Ron Vanderhoff 2018 Ron Vanderhoff 2017 Abby Sirulnik 2020 Diane Etchison 2021 Ron Vanderhoff 2021 Ron Vanderhoff 2021 Ron Vanderhoff 2021 Ron Vanderhoff 2017 Abby Sirulnik 2021 Ron Vanderhoff 2021 Ron Vanderhoff 2015 Lynne Small 2020 Ron Vanderhoff 2020 Diane Etchison 2011 Jeffrey Hapeman 2011 Jeffrey Hapeman
Piperia cooperi is a perennial herb that is native to California, and found only slightly beyond California borders.
California Rare Plant Rank: 4.2 (limited distribution).
[Wikipedia] Distribution, Description, Conservation: Platanthera cooperi is an uncommon species of orchid known by the common names Cooper's rein orchid and chaparral rein orchid.
Distribution
The orchid is endemic to chaparral, coastal sage scrub, and oak woodland habitats. It is native to southern California and the border area in Baja California.
It is found in the Santa Monica Mountains, Simi Hills, and San Gabriel Mountains of the Transverse Ranges; Santa Catalina Island and San Clemente Island of the Channel Islands, and the Santa Ana Mountains and Cuyamaca Mountains of the Peninsular Ranges.[1]
Description
Platanthera cooperi grows erect to about 90 centimetres (35 in) in maximum height from a bulbous caudex. The basal leaves are up to 20 centimeters long by 3 cm wide. Leaves higher on the stem are much reduced.
The upper part of the stem is a spikelike inflorescence of many small green flowers, which are honey-scented in the evenings. Its bloom period is from March to June.
Conservation
This orchid is a listed vulnerable species on the California Native Plant Society Inventory of Rare and Endangered Plants.[2] (contributed by Mary Ann Machi)
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Suggested Citation
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2023. Berkeley, California:The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 11/30/2023).