Lasthenia ornduffii

R. Chan
Madroño 48: 209. 2002.
Common names: Ornduff’s goldfields
EndemicConservation concern
Basionym: Lasthenia macrantha subsp. prisca Ornduff Madroño 21: 96. 1971
Treatment appears in FNA Volume 21. Treatment on page 341. Mentioned on page 337, 338, 340.

Perennials, 4–28 cm. Stems decumbent, branched proximally, ± hairy throughout, more so distally. Leaves linear to oblong, 6–40 × 1.8–5(–18) mm, (± fleshy) margins entire or with 3–5+ teeth, faces glabrous or ± hairy. Involucres campanulate to depressed-hemispheric, 5–14 mm. Phyllaries (± persistent) 8–14 (in 2 series), elliptic to ovate, ± hairy. Receptacles conic, muricate, glabrous. Ray florets 8–15; laminae elliptic to oblong, 5–9(–13.4) mm. Anther appendages deltate to sublanceolate. Cypselae silver-gray, linear to narrowly clavate, to 4 mm, glabrous; pappi 0, or of 1–4 translucent, brown, subulate, aristate scales (often variable within heads). 2n = 32.

Phenology: Flowering year round (mostly May–Aug).
Habitat: Coastal bluffs
Elevation: 0–500 m


Of conservation concern.

Lasthenia ornduffii is known only from six or so populations in grasslands along the immediate coast in Curry County. The plants are usually scapiform.

Selected References


Lower Taxa