Goodrich’s Cleomella
Cleomella hillmanii var. goodrichii
NatureServe conservation status
Global (G-rank): G4G5T1
State (S-rank): S1
Utah Wildlife Action Plan status
- SGCN
External links
General information
Cleomella hillmanii var. goodrichii is known from Unitah County, Utah and Lemhi County, Idaho where it grows in dry, open, often alkaline meadows and flats. This stinkweed blooms while it's still quite small with powerful little yellow flowers that are described as ill-smelling. This species has trifoliate leaves with rounded tips and grows mid calf height in the very narrow and disjunct regions it is found. It is best identified while it is in fruit.
Description
Cleomella hillmanii var. goodrichii is known from Unitah County, Utah and Lemhi County, Idaho where it grows in dry, open, often alkaline meadows and flats. This stinkweed blooms while it's still quite small with powerful little yellow flowers that are described as ill-smelling. This species has trifoliate leaves with rounded tips and grows mid calf height in the very narrow and disjunct regions it is found. It is best identified while it is in fruit.
Phenology
Flowers primarily in the spring months, April to June.
Diagnostic characteristics
Cleomella hillmanii is divided further into two varieties by measurements of the fruiting parts:
Cleomella hillmanii var. goodrichii has fruiting pedicels which attach to the stem and are 4.5-8.5 (10) mm long, the stipe which attaches to the fruit and the fruiting pedicel is 3.5-6.5 mm long and the capsules are (5) 6.5-10.5 mm in diameter.
Cleomella hillmanii var. hillmanii has fruiting pedicels which attach to the stem measure (6.5) 9-17 mm long, the stipe which attaches to the fruit and the fruiting pedicel is (6) 7-15 mm long and the capsules are 4-7 (8) mm in diameter.
In flower, Cleomella hillmannii var. goodrichii which stems that are hairless can resemble Cleomella platycarpa which has stems with spreading hairs and glandular hairs.
Species range
Uintah County, Utah and Lemhi County, Idaho.
Threats or limiting factors
Observations in Utah Rare Plant Database reported farming and ranching, OHV recreation, invasive plant species, drought, storms and flooding, hiking as well as natural rarity and small isolated populations as threats (URPD 2025).
Taxonomy
No, this species does not have taxonomic discrepancies