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Published In: Stirpium Austriarum Fasciculus 1: 18. 1762. (Stirp. Austr. Fasc.) Name publication detail

Project Name Data (Last Modified On 8/11/2017)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Introduced


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2. Camelina sativa (L.) Crantz (common false flax, false flax)

Pl. 316 e, f; Map 1329

Stems (12–)30–80(–100) cm long; stems and leaves sparsely pubescent, with the minute, unbranched hairs not longer than the stellate hairs, sometimes nearly glabrous. Stem leaves (1–)2–7(–9) cm long, margins commonly wavy and/or with shallow, widely spaced teeth, base sagittate to strongly auriculate. Sepals 2–3 mm long. Petals yellow, (3.0–)4.0–5.5 mm long. Fruits 7–9(–10) mm long. Styles 1.0–2.5 mm long. Seeds 1.5–1.7(–3.0) mm long, narrowly elliptic in outline, about 2 times as long as wide, the surface roughened, light orange to pale yellowish brown. 2n=26, 28, 40. April–August.

Introduced, uncommon and widely scattered in Missouri (native of Europe, Asia; sporadically introduced in North America). Margins of crop fields, railroads, and open, disturbed areas.

McGregor (1985a) reported a third species for Missouri, C. alyssum (Mill.) Thell., based on a single historical collection from Cass County. However, the specimen has been redetermined as C. sativa. McGregor suggested that this European species was an early introduction in the Great Plains that became extirpated from the region by about 1950. It differs from C. sativa in its lobed or toothed leaves, nodding inflorescences, relatively broad fruits, and slightly larger seeds. Camelina alyssum apparently still persists locally in southern Canada (Gleason and Cronquist, 1991), but it should be considered excluded from the Missouri flora.



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