Taxon Report
Calochortus greenei Wats.Greene's mariposa-lily |
 © 2013 Scot Loring |
Taxon Summary
Calochortus greenei, commonly known as Greene's mariposa-lily, is a perennial bulbiferous herb in the Liliaceae that is found in California and elsewhere. It occurs within Cismontane woodland, Meadows and seeps, Pinyon and juniper woodland, and Upper montane coniferous forest, growing at elevations from 1035 to 1890 meters. Calochortus greenei is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.Classification
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Scientific Name: |
Calochortus greenei Wats. |
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Common Name: |
Greene's mariposa-lily |
| Family: | Liliaceae |
| Element Code: | PMLIL0D0H0 |
| USDA Plants Symbol: | CAGR |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial bulbiferous herb |
| Blooming Period: Jun-Aug | Jun-Aug |
| Elevation: | 1035-1890 (3395-6200) |
| General Habitats: | Cismontane woodland, Meadows and seeps, Pinyon and juniper woodland, Upper montane coniferous forest |
| Microhabitat: | Volcanic |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.2 |
| Global Rank: | G3 |
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State Rank: |
S2S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_BerrySB; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 50 |
| Element Occurrence Ranks: | |
| Excellent (A) | 22 |
| Good (B) | 11 |
| Fair (C) | 8 |
| Poor (D) | 4 |
| None (X) | 0 |
| Unknown (U) | 5 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Siskiyou (SIS) | |
| Quads: Name (Quad Code) | |
| Mule Hill (4212212), Parker Mtn. (4212213), Bogus Mountain (4112274), Dewey Gulch (4112273), Hawkinsville (4112275), Hornbrook (4112285), Iron Gate Reservoir (4112284), Panther Rock (4112272), Secret Spring Mtn. (4112282), Solomons Temple (4112263) | |
Threat List Data from the CNDDB
| Threat List Total: | 9 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 37 | 74 % | |
| Grazing | 21 | 42% |
| Development | 8 | 16% |
| Other | 7 | 14% |
| Logging | 7 | 14% |
| Non-native plant impacts | 6 | 12% |
| ORV activity | 4 | 8% |
| Road/trail construction/maint. | 2 | 4% |
| Feral pigs | 1 | 2% |
| Foot traffic/trampling | 1 | 2% |
Notes
| Threatened by development, horticultural collecting, grazing, vehicles, and competition. Candidate for state listing in OR. See Proceedings of the American Academy of Arts and Sciences 14:264 (1879) for original description, and Proceedings of the California Academy of Sciences III 2:129 (1901) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
Selected References
| Calochortus greenei account for potential Species of Conservation Concern evaluation (2022) |
| Calochortus greenei account for potential Species of Conservation Concern evaluation (2022) |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 19 November 2025].