Illustrator:

Copyright:

Stems erect, to 8 cm, glabrous or puberulent. Leaves sessile; blade linear to narrowly lan­ceolate or oblanceolate, 1.5–6cm, surfaces glabrate. Inflo­rescences racemes, axis recurved at tip in bud; buds pendent. Flowers: floral-tube 3–7 mm, puberulent with spreading hairs and shorter glandular-hairs; corolla bowl-shaped, petals pinkish lavender, lighter prox­imally, often with dark reddish spot at base, broadly obo­vate or obdeltate, 10–30 mm; stamens 8, subequal; ovary 8-grooved, sparsely puberulent, hairs mostly glan­dular; stigma exserted beyond anthers. Capsules 10–35 mm; pedicel 5–15 mm. Seeds brown, 2 mm, minutely scaly, crest 0.5 mm, prominent. 2n = 14.

Phenology: Flowering Apr–Jun.
Habitat: Openings in woodlands and chaparral, serpentine soil.
Elevation: 0–1600 m.

Distribution

• Generated Map
• Legacy Map

Calif.

Discussion

Clarkia arcuata is primarily distributed in the foothills of the Sierra Nevada from Mariposa to Tehama counties, sparsely south to Kern County, and with one disjunct occurrence in Shasta County; it has also been reported from Napa County.

Clarkia arcuata is morphologically most similar to C. lassenensis, from which it differs in fruit char­acter­istics. The two species have distinct areas of distribution and attempts to produce hybrids have not been successful.

Selected References

None.

Lower Taxa

None.