CPC Plant Profile: Santa Barbara Island Buckwheat
Search / Plant Profile / Eriogonum giganteum var. compactum
Plant Profile

Santa Barbara Island Buckwheat (Eriogonum giganteum var. compactum)

Photo Credit: Steve Matson
Description
  • Global Rank: T2 - Imperiled
  • Legal Status: N/A
  • Family: Polygonaceae
  • State: CA
  • Nature Serve ID: 140085
  • Date Inducted in National Collection: 10/26/2021

Eriogonum giganteum var. compactum is a small shrub, less than 100 cm tall, with leathery, white-woolly, ovate leaves and generally dense clusters of white to rose flowers with a 2-2.5 mm perianth. [NatureServe]

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

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 13 accessions of Eriogonum giganteum var. compactum in orthodox seed collection. There are as many as 11474 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, San Diego Botanic Garden has collected 1 seed accessions of Eriogonum giganteum var. compactum from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 4 maternal plants

  • 08/05/2020
  • Seed Collection

Based on an August 2020 extract of the California Plant Rescue Database, Santa Barbara Botanic Garden has collected 12 seed accessions of Eriogonum giganteum var. compactum from 2 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 45 maternal plants

Be the first to post an update!

Photos
Nomenclature
Taxon Eriogonum giganteum var. compactum
Authority Dunkle
Family Polygonaceae
CPC Number 1722
ITIS 527992
USDA ERGIC
Common Names Santa Barbara Island Buckwheat | Santa Barbara Island Giant Buckwheat
Associated Scientific Names Eriogonum giganteum S. Watson subsp. compactum | Eriogonum giganteum var. compactum | Eriogonum giganteum ssp. compactum | Eriogonum formosum var. compactum | Eriogonum giganteum subsp. compactum
Distribution Endemic to California, Eriogonum giganteum var. compactum is known from seven extant occurrences (five observed as of 1998) on Santa Barbara Island, California. [NatureServe]
State Rank
State State Rank
California S2
Habitat

Eriogonum giganteum var. compactum is found in the coastal sage and chaparral habitat.  

Ecological Relationships

Pollinators
Common Name Name in Text Association Type Source InteractionID

Donate to CPC to Save this Species

Fall fundraising drive has begun! We're looking for 2,500 people to protect our planet. With you by our side, we will build a future where people live in harmony with nature. Come help and become a CPC donor today.

Donate Today