CPC Plant Profile: Scadden Flat Checkerbloom
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Plant Profile

Scadden Flat Checkerbloom (Sidalcea stipularis)

  • Global Rank: G1 - Critically Imperiled
  • Legal Status: N/A
  • Family: Malvaceae
  • State: CA
  • Nature Serve ID: 152327
  • Date Inducted in National Collection: 10/15/2005

Participating Institutions
  • 09/01/2020
  • Orthodox Seed Banking

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 2 accessions of Sidalcea stipularis in orthodox seed collection. There are as many as 743 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

Nature Serve Biotics
  • 05/02/2017

Endemic to California, Sidalcea stipularis is known from only two occurrences in the Scadden Flat area near Grass Valley in Nevada County. Part of one of the occurrences is supposedly being voluntarily protected by the landowner. Altered hydrology, road maintenance, grazing, and non-native plants threaten this taxon. The large, well-known Caltrans site is threatened by road widening, invasive blackberries and potential catastrophic events.

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Taxon Sidalcea stipularis
Authority Howell et True
Family Malvaceae
CPC Number 44454
ITIS 505214
Common Names Scadden Flat Checkerbloom
Associated Scientific Names Sidalcea stipularis
State Rank
State State Rank
California S1

Ecological Relationships

Common Name Name in Text Association Type Source InteractionID

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