Taxon Report
Lomatium howellii (Wats.) Jeps.Howell's lomatium |
 ©2008 Keir Morse |
Taxon Summary
Lomatium howellii, commonly known as Howell's lomatium, is a perennial herb in the Apiaceae that is found in California and elsewhere. It occurs within Chaparral, and Lower montane coniferous forest, growing at elevations from 110 to 1705 meters. Lomatium howellii is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.Classification
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Scientific Name: |
Lomatium howellii (Wats.) Jeps. |
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Common Name: |
Howell's lomatium |
| Family: | Apiaceae |
| Element Code: | PDAPI1B0U0 |
| USDA Plants Symbol: | LOHO |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial herb |
| Blooming Period: Apr-Jul | Apr-Jul |
| Elevation: | 110-1705 (360-5595) |
| General Habitats: | Chaparral, Lower montane coniferous forest |
| Microhabitat: | Serpentine |
| Microhabitat Details: |
Conservation Status
| CA Rare Plant Rank: | 4.3 |
| Global Rank: | G4G5 |
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State Rank: |
S4 |
| State List: | None |
| Fed List: | None |
| Other Status: | |
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CRPR Changes: |
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Occurrence Data from the CNDDB
| Total Occurrences: | 0 |
| Element Occurrence Ranks: | |
| Excellent (A) | 0 |
| Good (B) | 0 |
| Fair (C) | 0 |
| Poor (D) | 0 |
| None (X) | 0 |
| Unknown (U) | 0 |
| California Endemic: False | |
| California Counties and Islands: Name (Code) | |
| Del Norte (DNT) | |
| Quads: Name (Quad Code) | |
| Cant Hook Mtn. (4112368), Childs Hill (4112461), Gasquet (4112378), High Divide (4112481), High Plateau Mtn. (4112388), Hiouchi (4112471), Hurdygurdy Butte (4112377), Shelly Creek Ridge (4112387), Ship Mountain (4112367) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | 0 % | |
Citation
California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 27 October 2025].