Globally Critically Imperiled (G1) (Source: NatureServe)

Classification
Within iNaturalist.org

All Names

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

Guide Colors

   

Extras

Taxonomic changes »

Taxon schemes »

Make taxonomic Flickr tags for this taxon »

Flickr invite link »

Wikipedia taxobox »

Tree Browser »

Search descendant taxa »

Embed a widget for this taxon on your website »

Recent observations

Photos / Sounds

Square

What

Tiburon Mariposa Lily Calochortus tiburonensis

Observer

michaelhanrahan

Date

May 24, 2013

Description

A rare Colochortus, found only on Ring Mountain in Tiburon, California.

Photos / Sounds

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

hikingtony

Date

May 29, 2013

Photos / Sounds

Square

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

invertboy

Date

May 27, 2013 10:22 AM PDT

Photos / Sounds

Square

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

robberfly

Date

May 24, 2013 11:51 AM PDT

Place

256–298 Westward Dr, Corte Madera, California, US (Google, OSM)

Description

Endemic Calachortus sp.

Photos / Sounds

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

hikingtony

Date

May 15, 2013 05:22 PM PDT

Description

Should be blooming soon!

Photos / Sounds

4560610425_2cd30ffaa4_s

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

tapbirds

Date

May 31, 2005

Photos / Sounds

4659677819_05ddb22fec_s

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

eric_hunt

Date

May 31, 2010 01:57 PM PDT

Description

Species endemic and restricted to Ring Mountain Open Space Preserve, Tiburon, Marin County, California

Common name: Tiburon mariposa lily

CNPS Inventory of Rare and Endangered Plants on list 1B.1 (rare, threatened, or endangered in CA and elsewhere). It is listed by the State of California as Threatened and by the Federal Government as Threatened

Photographed at Ring Mountain Open Space Preserve, Tiburon, Marin County, California

Photos / Sounds

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

kueda

Date

June 12, 2010 10:54 AM PDT

Description

Second time trying to find this flower proved successful. They really are strange little things, in addition to being insanely rare (they only grow on Ring Mountain, I believe). They're fairly unassuming from a distance, brownish yellow, the same color as the surrounding grass, but they just get weirder and weirder as you draw closer.

To the woman I met along the trail: hike the Phyllis Ellman Trail, and look out for weird little brown flowers!

Photos / Sounds

3560215936_902731526e_s

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

tomhilton

Date

May 24, 2009 08:03 AM PDT

Description

Calochortus tiburonensis, a rare and endangered species that grows only on Ring Mountain in Tiburon. More info here.

Photos / Sounds

3563461496_65db398325_s

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

tomhilton

Date

May 24, 2009 08:04 AM PDT

Photos / Sounds

3563461380_0ee5090c8b_s

What

Tiburon mariposa lily Calochortus tiburonensis

Observer

tomhilton

Date

May 24, 2009 08:04 AM PDT
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....

Logo-eee-15px

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)