Annual herb of very variable size and habit.. Stems usually erect and branched only in upper parts (in low plants also ascending and branched from the base), furrowed, 15–120 cm. high, densely hispid especially below (rarely practically glabrous).. Leaves densely hairy on both surfaces (rarely almost glabrous); lower and median leaves petiolate, incised to lyrate-pinnate; terminal lobe large, acutely ovate to rhombic, cuneate (rarely truncate), 5–11 cm. long, 3–8 cm. broad in well developed plants; lateral lobes much smaller, in 1-few pairs, free or ± connected with each other and the end lobe; leaf-margins biserrate; upper leaves narrowly rhombic to lanceolate, serrate, almost sessile.. Racemes with numerous very small whitish flowers, in fruit lax, usually with several side branches, hairy, up to 30 cm. long; pedicels ascending to erect, 2.5–8 mm. long.. Sepals green with white margins, elliptic, 1.5–2.3 mm. long.. Petals white, narrowly spathulate, equalling or shorter than sepals, 1–2.5 mm. long.. Stamens 2–3 mm. long; anthers 0.4–0.7 mm. long; filaments linear, not denticulate.. Upper segment of ovary ellipsoid, slightly broader than and ± 6 times as long as the lower.. Nutlet spheroidal to broadly ellipsoid, distinctly reticulate to rugose, 2.5–4 mm. long, 2.2–3.3 mm. broad, with a yellowish brown finely rugose seed; lower fruit segment 0.2–0.6 mm. long, usually equalling but sometimes considerably longer than the gynophore.. Fig. 4, p. 14.
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A cabbage family herb. It is an annual herb. It grows 1 m high. The stems are erect and ribbed. It branches in the upper part. The lower leaves are 5-10 cm long by 3-6 cm wide. They are lyre shaped and with 2-3 pairs of side segments. The upper part of the fruit has 4 ribs. They are 3-4 mm long by 2-3 mm wide.
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