Flora of North America species comparison

erect, branched distally, 2.5–7.5(–11) dm, usually sparsely to densely hirsute, (trichomes retrorse), rarely glabrate distally.

usually rosulate;

petiole (1–)2–7(–10) cm;

blade broadly oblanceolate or oblong-obovate (in outline), (2–)3–10(–15) cm × (10–)20–50(–80) mm, margins lyrate-pinnatifid, pinnatisect, or runcinate;

lobes (2)3 or 4(5) on each side, oblong or lanceolate, smaller than terminal lobe, margins entire, dentate, or lobed, (terminal lobe suborbicular or deltate, margins dentate).

similar to basal;

blade with lobe margins dentate or subentire.

petiolate or sessile;

blade base not auriculate [auriculate], margins usually pinnately lobed or dentate, sometimes entire.

(usually racemose, sometimes fasciculate, or flowers solitary in Sisymbrium polyceratium), usually ebracteate (bracteate in S. polyceratium), often elongated in fruit.

sepals erect, oblong-ovate, 2–2.5 × ca. 1 mm;

petals spatulate, 2.5–4 × 1–2 mm, claw 1–2 mm;

filaments (erect, yellowish), 2–3 mm;

anthers ovate, 0.3–0.5 mm.

actinomorphic;

sepals erect to spreading, lateral pair seldom saccate basally;

petals yellow [pink, white], claw present, often distinct;

filaments unappendaged, not winged;

pollen 3-colpate.

erect, (appressed to rachis), stout, narrower than fruit, 1.5–3(–4) mm.

(erect), subulate-linear, straight, slightly torulose or smooth, stout, (0.7–)1–1.4(–1.8) cm × 1–1.5 mm;

valves glabrous or pubescent;

ovules 10–20 per ovary;

style (0.8–)1–1.5(–2) mm;

stigma slightly 2-lobed.

siliques, dehiscent, unsegmented, usually terete [slightly latiseptate];

ovules 6–120(–140)[–160] per ovary;

style usually distinct, rarely obsolete;

stigma 2-lobed.

1–1.3 × 0.5–0.6 mm.

uniseriate;

cotyledons incumbent.

simple or absent, [rarely branched].

= 14.