Camissonia walkeri (A.Nelson) P.H.Raven
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Authority
Raven, Peter H. 1969. A revision of the genus Camissonia (Onagraceae). Contr. U. S. Natl. Herb. 37: 161-396.
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Family
Onagraceae
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Scientific Name
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Description
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Description - Slender herb 10-60 cm. tall, villous below and with a basal rosette, the cauline leaves well developed or absent. Basal leaves oblong, with brown oil cells prominently lining veins below, often purple-dotted, doubly serrate, 3-22 cm. long, villous, often densely so below; terminal leaflet 1-5 cm. long, 0.5-3 cm. wide. Inflorescence branching, erect, elongating in flower and fruit, the buds individually drooping. Hypanthium 0.5-1.5 mm. long, glandular-pubescent or hispid without, glabrous to sparsely villous within. Sepals 1.2-4 mm. long, 0.5-1 mm. wide, often purple-dotted, short-caudate at the apices. Petals 1.2-6 mm. long, 0.6-6 mm. wide, bright yellow and of same color as stamens, style, and inside of hypanthium. Filaments of the episepalous stamens 1-3 mm. long, those of the epipetalous ones 0.3-2 mm. long; anthers 0.6-2 mm. long, glabrous or ciliate. Style 1.5-6 mm. long, glabrous or villous at base; stigma ca. 0.6 mm. thick, surrounded by the anthers at maturity. Capside 1.2-4.5 cm. long, 1.2-1.8 mm. thick, spreading or ascending, the valves often twisted at maturity, straight or slightly curved. Seeds 0.6-1.2 mm. long, 0.4-0.6 mm. thick. Gametic chromosome numbers, n= 7, 14. Autogamous.