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Herbs annual, (12-)30-80(-100) cm tall, glabrous or sparsely pubescent with small branched trichomes rarely mixed with fewer simple ones. Stems simple or branched above, often glabrescent. Cauline leaves lanceolate, narrowly oblong, or linear-lanceolate, middle ones (1-)2-7(-9) cm × 2-10(-15) mm, glabrescent or sparsely pubescent with primarily forked trichomes, base sagittate or strongly auriculate, margin entire or rarely remotely denticulate, apex acute. Fruiting pedicels (0.8-)1.2-2(-2.7) cm. Sepals 2-3 × 0.5-1 mm. Petals yellow, (3-)4-5.5 × 0.5-1 mm. Filaments 1.5-3 mm; anthers ca. 0.5 mm. Fruit obpyriform or broadly obovoid, 7-9(-10) × 4-5 mm, often subtruncate at apex; valves with a distinct midvein and less prominent lateral veins; style 1-2.5 mm. Seeds dark brown, oblong (1.5-)1.7-2.5(-3) × 0.7-1 mm. Fl. May-Jun. 2n = 40*.
Erect herb to 80 cm tall, not or sparingly branched, somewhat hairy; hairs simple and branched. Leaves cauline, lanceolate or narrowly oblong, entire or remotely denticulate, auriculate. Inflorescence a dense elongated raceme. Sepals to 2 mm long. Petals to 5 mm long, yellow. Style 1.5–2 mm long. Silicula 6–9 mm long, 4–5 mm wide, obovoid, rounded at summit; valves convex, hard and incompressable, pale yellow; pedicels ascending, to 25 mm long. Seeds ellipsoidal, 1–2 mm long. Radicle incumbent.
A cabbage family herb. It is an erect annual herb. It grows 80 cm high. It branches from the base. The lower leaves are oblong or sword shaped and 15-50 cm long by 5-10 mm wide. They are wedge shaped at the base. The upper leaves are narrow and without stalks. The flowers are yellow. They are in groups of 30-70 flowers. They are on a stalk 30 cm long. The fruit is a pod 7-9 mm long and 4-5 mm wide.
Much like no. 1 [Camelina microcarpa Andrz.]; stem and lvs glabrous to sparsely pubescent, the simple hairs not projecting beyond the stellate ones; frs 7–9 mm, inconspicuously veiny, on pedicels 10–21 mm; seeds 1–2 mm; 2n=40. Native of the Old World, established as a casual weed in n. U.S. and adj. Can., less common with us than no. 1 [Camelina microcarpa Andrz.].
