CPC Plant Profile: Chaparral Harebell
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Plant Profile

Chaparral Harebell (Campanula exigua)

Photo Credit: ©2014 Chris Winchell
  • Global Rank: G2 - Imperiled
  • Legal Status: N/A
  • Family: Campanulaceae
  • State: CA
  • Nature Serve ID: 140125
  • Date Inducted in National Collection: 09/18/2021

Commonly known as the Chaparral harebell, Campanula exigua can be found across multiple counties in California’s Bay Area. As the common name suggests, C. exigua belongs in the chaparral community and is commonly found with other chaparral species in the area including buckwheat, sage, and dandelions.  Within chaparral ecosystems, C. exigua prefers serpentine or rocky soil. Due to this preference, it is continuously threatened by human activity including rock mining. 

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

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 1 accessions of Campanula exigua in orthodox seed collection. There are as many as 2533 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 1 seed accessions of Campanula exigua from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass an unknown number of maternal plants

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Taxon Campanula exigua
Authority Rattan
Family Campanulaceae
CPC Number 8424
ITIS 34483
Common Names Chaparral harebell | chaparral bellflower
Associated Scientific Names Campanula exigua
Distribution C. exigua can be found across Alameda, Contra Costa, San Benito, Santa Clara, and Stanislaus counties. 
State Rank
State State Rank
California S2

This species grows in chaparral communities near cliff sides or rocky areas. 

Ecological Relationships

Common Name Name in Text Association Type Source InteractionID

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