CPC Plant Profile: Hoffmann's Slender-flowered Gilia
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Plant Profile

Hoffmann's Slender-flowered Gilia (Gilia tenuiflora ssp. hoffmannii)

Photo Credit: John Game
Description
  • Global Rank: T1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Polemoniaceae
  • State: CA
  • Nature Serve ID: 151766
  • Date Inducted in National Collection: 09/18/2021

Gilia tenuiflora ssp. hoffmannii is 6-12 cm in length and has a multi-branched stem which emerges from a basal rosette of leaves, each leaf divided into long, straight leaflets. The flower, which blooms from April through June, is lavender with a long stigma protruding from its white throat. 

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

Based on an September 2020 extract of the California Plant Rescue Database, Santa Barbara Botanic Garden holds 8 accessions of Gilia tenuiflora subsp. hoffmannii in orthodox seed collection. There are as many as 12464 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

  • 09/01/2020
  • Orthodox Seed Banking

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 3 accessions of Gilia tenuiflora subsp. hoffmannii in orthodox seed collection. There are as many as 14360 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, Santa Barbara Botanic Garden has collected 10 seed accessions of Gilia tenuiflora subsp. hoffmannii from 4 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 145 maternal plants

  • 01/01/2010

Soil loss, habitat alterabion by alien mammals, native seabirds, vehicular traffic, overcollection for scientific or horticultural purposes, competition with alien platn taxa, and the chance of random extinction. habitat alteration due to vehicula

  • 01/01/2010

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Photos
Nomenclature
Taxon Gilia tenuiflora ssp. hoffmannii
Authority (Eastw.) A. & V. Grant
Family Polemoniaceae
CPC Number 2031
ITIS 31093
USDA GITEH
Common Names Hoffman Slender-flowered Gilia | Hoffman's gilia
Associated Scientific Names Gilia tenuiflora ssp. hoffmannii | Gilia hoffmannii
Distribution Gilia tenuiflora ssp. hoffmannii is known from only three occurrences at East Pt., Skunk Pt., and near Carrington Pt. on Santa Rosa Island, California.  [CNPS]
State Rank
State State Rank
California S1
Habitat

Gilia tenuiflora ssp. hoffmannii  can be found in coastal dune, bluff and sage scrub communities.

Ecological Relationships

Pollinators
Common Name Name in Text Association Type Source InteractionID

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