Globally Critically Imperiled (G1) (Source: NatureServe)

Classification
Within iNaturalist.org

All Names

  • Scientific Names
    • Calochortus tiburonensis
  • English
    • Tiburon mariposa lily

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Recent observations

Photos / Sounds

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

damontighe

Date

June 25, 2015 05:19 PM PDT

Place

(Somewhere...)

Photos / Sounds

17698923083 e2e70f0d9c s

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

cnaventi

Date

May 30, 2015

Place

(Somewhere...)

Photos / Sounds

Square

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

maryswanson351

Date

June 14, 2015 12:15 PM PDT

Place

(Somewhere...)

Photos / Sounds

18818034865 ac02d9fd37 s

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

th0th

Date

June 14, 2015

Place

(Somewhere...)

Photos / Sounds

Square

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

sterling

Date

June 8, 2015 09:28 AM PDT

Place

(Somewhere...)

Photos / Sounds

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

loarie

Date

June 7, 2015 08:45 PM PDT

Place

(Somewhere...)

Photos / Sounds

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

marionanthonisen

Date

May 24, 2015 05:37 PM PDT

Place

(Somewhere...)

Description

Tiburon Mariposa Lily, endemic to Ring Mtn in Marin County

Photos / Sounds

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

laceypantalones

Date

May 30, 2015

Place

(Somewhere...)

Photos / Sounds

Square

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

dgreenberger

Date

May 23, 2015 03:17 PM PDT

Place

(Somewhere...)

Photos / Sounds

No photos or sounds

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

sarahsnail

Date

February 28, 2015 09:39 AM PST

Place

(Somewhere...)

Photos / Sounds

Square

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

dgreenberger

Date

June 19, 2014 07:02 PM PDT

Place

(Somewhere...)

Photos / Sounds

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

loarie

Date

June 7, 2014 06:51 PM PDT

Place

(Somewhere...)
View all observations

Description from Wikipedia

Calochortus tiburonensis, the Tiburon Mariposa Lily, is a rare member of the genus Calochortus in the family Liliaceae. It is endemic to Marin County, California, where it is known only from one population on Ring Mountain. There it occurs on a single serpentine outcrop in grasslands from 50–150 metres (160–490 ft) in elevation....

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Conservation Summary

  • Globally
    Critically imperiled (G1) (Source: NatureServe)
    Critically Imperiled. Narrowly endemic to serpentine grasslands on a single summit on the Tiburon Peninsula in Marin County, California. The single population is located within a preserve.
  • United States
    Critically imperiled (N1) (Source: NatureServe)
    • California, US
      1B.1 (Source: CNPS)
      California Native Plant Society, California Rare Plant Rank 1B.1: Plants Rare, Threatened, or Endangered in California and Elsewhere - Seriously threatened in California
      Critically imperiled (S1.2) (Source: NatureServe)