Taxon Report
Tiquilia canescens (DC.) A.T. Richardson var. pulchella (I.M. Johnst.) A.T. RichardsonChocolate Mountains tiquilia |
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Taxon Summary
Tiquilia canescens var. pulchella, commonly known as Chocolate Mountains tiquilia, is a perennial shrub in the Ehretiaceae that is found in California and elsewhere. It occurs within Sonoran desert scrub, growing at elevations from 250 to 700 meters. Tiquilia canescens var. pulchella is ranked 3.2, Plants About Which We Need More Information, A Review List; Moderately threatened in California.Classification
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Scientific Name: |
Tiquilia canescens (DC.) A.T. Richardson var. pulchella (I.M. Johnst.) A.T. Richardson |
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Common Name: |
Chocolate Mountains tiquilia |
| Family: | Ehretiaceae |
| Element Code: | PDBOR0Y012 |
| USDA Plants Symbol: | TICAP |
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Synonyms/Other Names: |
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Ecology and Life History
| Lifeform: | perennial shrub |
| Blooming Period: Feb-May | Feb-May |
| Elevation: | 250-700 (820-2295) |
| General Habitats: | Sonoran desert scrub |
| Microhabitat: | Slopes (sometimes), Washes (sometimes) |
| Microhabitat Details: | sometimes ridges |
Conservation Status
| CA Rare Plant Rank: | 3.2 |
| Global Rank: | G5T3T4 |
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State Rank: |
S3 |
| 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) | |
| Imperial (IMP), Riverside (RIV), San Bernardino (SBD) | |
| Quads: Name (Quad Code) | |
| Buzzards Peak (3311427), Chemehuevi Peak (3411455), Corn Spring (3311563), East of Acolita (3311511), East of Red Canyon (3311555), Frink NW (3311546), Ninemile Wash (3311418), Picacho SW (3311416), Pilot Mountain (3311553) | |
Threat List Data from the CNDDB
| Threat List Total: | 0 | |
| EOs with Threat Listed: | Total EOs | % of EOs |
| 0 | 0 % | |
Notes
| Move to CRPR 2 or 4? Location and rarity information needed. Many herbarium specimens of T. canescens not determined to variety; annotations needed, yet difficult to distinguish between varieties in dried material; needs study. Many occurrences historical; need field surveys. Known only from the Sonoran Desert. Threatened by solar and wind energy development. Possibly threatened by military activities and vehicles. See Journal of the Arnold Arboretum 20(3):379 (1939) for original description, and Sida 6(3):235-240 (1976) for taxonomic treatment. |
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Threats: |
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Taxonomy: |
Selected References
| CRPR List Addition on 2012-09-06 |
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].