Taxon Report
Triteleia ixioides (Wats.) Greene ssp. cookii (Hoov.) LenzCook's triteleia |
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Taxon Summary
Triteleia ixioides ssp. cookii, commonly known as Cook's triteleia, is a perennial bulbiferous herb in the Themidaceae that is found only in California. It occurs within Cismontane woodland, and Closed-cone coniferous forest, growing at elevations from 150 to 700 meters. Triteleia ixioides ssp. cookii is ranked 1B.3, Plants Rare, Threatened or Endangered in California and Elsewhere; Not very threatened in California.Classification
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Scientific Name: |
Triteleia ixioides (Wats.) Greene ssp. cookii (Hoov.) Lenz |
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Common Name: |
Cook's triteleia |
| Family: | Themidaceae |
| Element Code: | PMLIL210A2 |
| USDA Plants Symbol: | TRIXC |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial bulbiferous herb |
| Blooming Period: May-Jun | May-Jun |
| Elevation: | 150-700 (490-2295) |
| General Habitats: | Cismontane woodland, Closed-cone coniferous forest |
| Microhabitat: | Seeps, Serpentine |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 1B.3 |
| Global Rank: | G5T2T3 |
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State Rank: |
S2S3 |
| State List: | None |
| Fed List: | None |
| Other Status: | BLM_S; SB_UCBG; USFS_S |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 13 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 4 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 9 |
| California Endemic: True | |
| California Counties and Islands: Name (Code) | |
| Monterey (MNT), San Luis Obispo (SLO) | |
| Quads: Name (Quad Code) | |
| Burnett Peak (3512172), Burro Mountain (3512173), Cypress Mountain (3512058), Lime Mountain (3512068), Pebblestone Shut-in (3512161), Piedras Blancas (3512163), San Simeon (3512162) | |
Threat List Data from the CNDDB
| Threat List Total: | 6 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 4 | 31 % | |
| Feral pigs | 3 | 23% |
| Foot traffic/trampling | 3 | 23% |
| Improper burning regime | 3 | 23% |
| Other | 3 | 23% |
| Road/trail construction/maint. | 3 | 23% |
| Non-native plant impacts | 1 | 7% |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 23 December 2025].