Tiburon Mariposa Lily / Center For Plant Conservation
Search / Plant Profile / Calochortus tiburonensis
Plant Profile

Tiburon Mariposa Lily (Calochortus tiburonensis)

Tiburon mariposa lily, Calochortus tiburonensis. Known from only a single population in the San Francisco Bay Area. Photo Credit: Amy Patten
  • Global Rank: G1 - Critically Imperiled
  • Legal Status: Federally Threatened
  • Family: Liliaceae
  • State: CA
  • Nature Serve ID: 158362
  • Lifeform: Forb/herb
  • Date Inducted in National Collection: 02/13/2019
Description:

Tiburon Mariposa Lily is known from one single population located within Ring Mountain Preserve on the Tiburon Peninsula in Marin County, California. This California endemic lily boasts a striking flower with hairy petals colored light yellow with flecks of dark purple and brown. Surviving just in one location, Calochortus tiburonensis is threatened primarily by non-native plant species and recreational activities.

Where is Tiburon Mariposa Lily (Calochortus tiburonensis) located in the wild?

Distribution:

Serpentine grasslands on a single summit on the Tiburon Peninsula in Marin County, CA

States & Provinces:

Tiburon Mariposa Lily can be found in California

Which CPC Partners conserve Tiburon Mariposa Lily (Calochortus tiburonensis)?

  • University of California Botanical Garden

    Sponsored
    Sponsors Add

    Silver Sponsor

    Frank Thibodeau

    CPC Board of Trustees

    Conservation Actions
    Assigned 02/13/19
    • 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.

    Conservation Actions

    • 09/01/2020
      • Orthodox Seed Banking

    Based on an September 2020 extract of the California Plant Rescue Database, University of California Botanical Garden holds 1 accessions of Calochortus tiburonensis in orthodox seed collection. There are as many as 542 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, University of California Botanical Garden has collected 1 seed accessions of Calochortus tiburonensis from 1 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 132 maternal plants

    Be the first to post an update!

    Nomenclature
    Taxon Calochortus tiburonensis
    Authority A.J. Hill
    Family Liliaceae
    CPC Number 692
    ITIS 501149
    USDA CATI3
    Duration Perennial
    Common Names Tiburon Mariposa | Tiburon Mariposa Lily
    Associated Scientific Names Calochortus tiburonensis
    Distribution Serpentine grasslands on a single summit on the Tiburon Peninsula in Marin County, CA
    State Rank
    State State Rank
    California S1
    Ecological Relationships

    Photos

    Tiburon mariposa lily, Calochortus tiburonensis. Known from only a single population in the San Francisco Bay Area. Photo Credit: Amy Patten
    Newsletters
    Read More

    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