CPC Plant Profile: Napa Bluegrass
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Plant Profile

Napa Bluegrass (Poa napensis)

  • Global Rank: G1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Poaceae
  • State: CA
  • Nature Serve ID: 161644
  • Date Inducted in National Collection: 09/18/2021

perennial bunchgrass

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

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 4 accessions of Poa napensis in orthodox seed collection. There are as many as 7580 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

  • 08/05/2020
  • Seed Collection

Based on an August 2020 extract of the California Plant Rescue Database, California Botanic Garden has collected 2 seed accessions of Poa napensis from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 40 maternal plants

  • 01/01/2010

development of health spas and other construction activities at the Calistoga Airport urbanization, including construction of a hospital, recreational activities, airport maintenance, urbanization, and random events

  • 01/01/2010

only two populations are known to exist


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Taxon Poa napensis
Authority Beetle
Family Poaceae
CPC Number 3541
ITIS 41102
Common Names Napa Blue Grass | Napa bluegrass
Associated Scientific Names Poa napensis
Distribution NA
State Rank
State State Rank
California S1

grasslands and moist, alkaline meadows fed by hot springs

Ecological Relationships

Common Name Name in Text Association Type Source InteractionID

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