Camelina sativa

Flora of Oregon

Plants annual or biennial.

Stems (1.2)3–10(13) dm, basally glabrous or with minute branched trichomes.

Basal leaves often withered at anthesis.

Cauline leaves lanceolate, narrowly oblong, or linear-lanceolate, middle (1)2–7(9) cm × 2–10(15) mm, bases sagittate or strongly auriculate, margins entire or rarely remotely denticulate, surfaces glabrate or sparsely pubescent with primarily forked trichomes.

Inflorescences fruiting pedicels ascending, (8)12–20(27) mm.

Flowers sepals 2–3(4) mm; petals oblanceolate, (3.5)4–6 × 1–1.5 mm, yellow; styles 1.2–2.5 mm.

Fruits pyriform or broadly obovoid, 7–9(13) × 4–5(6) mm, often subtruncate at apex; valves prominently veined, narrowly winged at margin.

Seeds oblong, (1.5)1.8–2.5 × 0.7–1 mm, dark brown.

2n=40.

Grassy areas, fields, waste places. Flowering May–Jun. 100–1000 m. BW, WV. ID, WA; scattered worldwide. Exotic.

Flora of North America

as described under Camelina sativa

Annuals or biennials. Stems unbranched or branched distally, (1.2-)3-10(-13) dm, glabrous or sparsely pubescent basally, trichomes branched, rarely mixed with fewer, simple ones. Basal leaves often withered by anthesis. Cauline leaves: blade lanceolate, narrowly oblong, or linear-lanceolate, (1-)2-7(-9) cm × 2-10(-15) mm, base sagittate or strongly auriculate, margins entire or, rarely, remotely denticulate, apex acute, surfaces glabrescent or sparsely pubescent, trichomes usually forked. Fruiting pedicels ascending, (8-)12-20(-27) mm. Flowers: sepals 2-3(-4) × 0.5-1 mm; petals yellow, (3.5-)4-6 × 1-1.5 mm; filaments 1.5-3 mm; anthers ca. 0.5 mm. Fruits pyriform or broadly obovoid, 7-9 (-13) × 4-5(-6) mm (distinctly longer than wide), apex often subtruncate; valves each with prominent midvein, margin narrowly winged; style 1.2-2.5 mm. Seeds dark brown, (1.5-)1.8-2.5 × 0.7-1 mm. 2n = 40.Flowering May-Jun. Farms, grassy areas, fields, waste places; 0-1500 m; introduced; Alta., B.C., Man., N.W.T., Nunavut, Ont., Que., Yukon; Colo., Conn., D.C., Ill., Ind., Iowa, Kans., Maine, Mass., Mich., Minn., Mo., Mont., Nebr., N.H., N.J., N.Mex., N.Y., N.Dak., Ohio, Oreg., Pa., S.C., S.Dak., Vt., Va., W.Va., Wyo.; Europe; Asia; introduced also in South America, Australia.R. L. McGregor (1985) indicated that Camelina sativa is no longer established in North America; we tend to agree because we have not seen any collections made within the past 40 years.

Herbarium specimens

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