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18c. Horkelia daucifolia (Greene) Rydberg var. indicta (Jepson) Ertter & Reveal, Novon. 17: 319. 2007.
Jepson’s horkelia
Potentilla daucifolia Greene var. indicta Jepson, Man. Fl. Pl. Calif., 493. 1925
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.
Flowering summer. Vernally saturated openings in oak-conifer woodlands, mainly on clay soil; of conservation concern; 200–700 m; Calif.
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.
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