CPC Plant Profile: Guadalupe Island Lupine
Search / Plant Profile / Lupinus guadalupensis
Plant Profile

Guadalupe Island Lupine (Lupinus guadalupensis)

Description
  • Global Rank: G3 - Vulnerable
  • Legal Status: N/A
  • Family: Fabaceae
  • State: CA
  • Nature Serve ID: 151701
  • Date Inducted in National Collection: 12/15/2020

Participating Institutions
CPC's Plant Sponsorship Program provides long term stewardship of rare plants in our National Collection. We are so grateful for all our donors who have made the Plant Sponsorship Program so successful. We are in the process of acknowledging all our wonderful plant sponsorship donors on our website. This is a work in progress and will be updated regularly.
Updates
Center for Plant Conservation
  • 12/02/2021
  • Reintroduction

The choice of appropriate source populations is crucial for the success of outplanting attempts, but this choice is often based on assumptions regarding patterns of adaptation and distribution of genetic variability in natural populations. Although local adaptation is often assumed to exist, few data exist to support this model on smaller geographic scales, particularly in rare plant species. A. Y. Cantillo, working with San Diego State University, investigated the pattern of adaptation in populations of an annual, island endemic plant, Lupinus guadalupensis, on San Clemente Island, California. A reciprocal transplant experiment with three populations provided no evidence for local adaptation, but two source populations performed significantly better than the other at all sites. Desiccation and herbivoty are the major factos causing mortality and reducing fruit production. The young rosettes are the most vulnerable life-cycle stage. Differences among natural population sites in vegetation community, dominant species, soil type, and parent material did not affect populations of L. guadalupensis; significant differences were not observed in either total fruit production or in the majority of fitness components. Success of outplanting into three introduction sites from seeds collected in May 1995 from Box Canyon varied from the death of all plants before flowering or before fruits ripened to fruit production exceeding that at natural population sites. The results suggest that large populations are better sources of seeds for outplanting in L. guadalupensis and that outplanting is most successful in sites where plants are least subject to desiccation.


  • 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 Lupinus guadalupensis in orthodox seed collection. There are as many as 1834 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 Lupinus guadalupensis from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass an unknown number of maternal plants

Be the first to post an update!

Photos
Nomenclature
Taxon Lupinus guadalupensis
Authority Greene
Family Fabaceae
CPC Number 2712
ITIS 26023
USDA
Common Names Guadalupe Island Lupine
Associated Scientific Names Lupinus guadalupensis
Distribution
State Rank
State State Rank
California S3
Habitat

Ecological Relationships

Pollinators
Common Name Name in Text Association Type Source InteractionID
Bees
Leaf-cutting bees Anthidium emarginatum Not Specified Link
Leaf-cutting bees Osmia subaustralis Not Specified Link
Leaf-cutting bees Anthidium mormonum Not Specified Link
Long-horned bees Synhalonia lunata Not Specified Link
Leaf-cutting bees Anthidium tenuiflorae Not Specified Link
Anthophorine bees Anthophora urbana Not Specified Link
Anthophorine bees Anthophura pacifica Not Specified Link
Honey bees Apis mellifera Not Specified Link
Bumble bees Bombus bifarius nearcticus Not Specified Link
Bumble bees Bombus caliginosus Not Specified Link
Bumble bees Bombus centralis Not Specified Link
Bumble bees Bombus edwardsii Not Specified Link
Bumble bees Bombus flavifrons dimidiatus Not Specified Link
Bumble bees Bombus sylvicola Not Specified Link
Leaf-cutting bees Chelostomopsis rubifloris Not Specified Link
Leaf-cutting bees Megachile melanophaea calogaster Not Specified Link
Leaf-cutting bees Osmia bruneri Not Specified Link
Leaf-cutting bees Osmia cara Not Specified Link
Leaf-cutting bees Osmia densa Not Specified Link
Leaf-cutting bees Osmia juxta Not Specified Link
Leaf-cutting bees Osmia lignaria propinqua Not Specified Link
Leaf-cutting bees Osmia nifonta Not Specified Link
Leaf-cutting bees Osmia nigrobarbata Not Specified Link
Flies
Syrphid flies Eristalis hirtus Not Specified Link
Root-maggot flies Hylemya dexiata Not Specified Link
Reintroduction
Lead Institution State Reintroduction Type Year of First Outplanting
San Diego State University California Assisted Colonization 1996

Donate to CPC to Save this Species

CPC secures rare plants for future generations by coordinating on-the-ground conservation and training the next generation of plant conservation professionals. Donate today to help save rare plants from extinction.

Donate Today