Horkelia daucifolia var. indicta

(Jepson) Ertter & Reveal

Novon 17: 319. 2007.

Common names: Jepson’s horkelia
Conservation concernEndemic
Basionym: Potentilla daucifolia var. indicta Jepson Man. Fl. Pl. Calif., 493. 1925
Treatment appears in FNA Volume 9. Treatment on page 267. Mentioned on page 266.
Revision as of 23:11, 16 December 2019 by FNA>Volume Importer

Plants rosette-forming to tufted. Basal leaves green, 7–11 cm; leaflets 5–10(–15) mm, lobes (2–)5–15, linear, 0.4–1 mm wide. Pedicels 5–10(–20) mm, not puberulent, minutely glandular. Flowers: petals broadly obovate to obcordate, 5–7.5 × 4–6 mm; filaments 2–3 mm.


Phenology: Flowering summer.
Habitat: Vernally saturated openings in oak-conifer woodlands, mainly on clay soil
Elevation: 200–700 m

Discussion

Of conservation concern.

Variety indicta was known only from the type in Tehama County until rediscovered in 1990 in western Shasta County, confirming that this is a distinct variety in the forested hills rimming the northern Sacramento Valley (B. Ertter and J. L. Reveal 2007). One other historic collection of Horkelia daucifolia from Shasta County (Montgomery Creek, Smith s.n., CAS) is more similar to var. daucifolia.

Selected References

None.

Lower Taxa

None.
Barbara Ertter +  and James L. Reveal +
(Jepson) Ertter & Reveal +
Potentilla daucifolia var. indicta +
Jepson’s horkelia +
200–700 m +
Vernally saturated openings in oak-conifer woodlands, mainly on clay soil +
Flowering summer. +
Conservation concern +  and Endemic +
Ambiguae +, Hirsutae +, Horkelia sect. Hirsutae +, Sericatae +  and Horkelia sect. Sericatae +
Horkelia daucifolia var. indicta +
Horkelia daucifolia +
variety +