Flora of North America species comparison

unbranched or branched, (few, glaucous), 6–15(–18) dm.

often rosulate; petiolate;

blade (fleshy), oblanceolate to obovate, 3.5–21 cm, margins dentate, (bristly ciliate throughout or only teeth and petiole ciliate).

blade lanceolate to narrowly ovate, 3.5–11(–15) cm × 6–14 mm (smaller distally), base auriculate to amplexicaul, margins usually entire or undulate, rarely dentate.

petiolate or sessile;

blade base auriculate or not, margins entire, dentate, or pinnately lobed.

ebracteate, (with densely clustered buds, later lax).

usually ebracteate, often elongated in fruit.

calyx campanulate;

sepals (suberect), purple, (broadly ovate or oblong), 7–10 mm, not keeled, (apically bristly or not);

petals light purple (with pale yellow claw), 9–12 mm, blade 2–3.5 × 0.5–1 mm, margins not crisped, claw 6–9 mm, wider than blade;

stamens tetradynamous;

filaments: median pairs (distinct), 6–8 mm, lateral pair 4–6 mm;

anthers (all) fertile, 3–4 mm;

gynophore 0.5–1.5 mm.

usually actinomorphic, rarely zygomorphic;

sepals erect, ascending, spreading, or reflexed, lateral pair saccate or not basally;

petals white, yellow, orange, pink, lilac, lavender, purple, green, brown, or nearly black, claw present, often distinct;

filaments unappendaged, not winged;

pollen 3-colpate.

divaricate-ascending, (straight), 5–18 mm.

spreading to ascending, smooth, slightly curved to straight, flattened, 6–14 cm × 2–3.5 mm;

valves each with obscure midvein;

replum straight;

ovules 50–102 per ovary;

style 1–3 mm;

stigma 2-lobed.

usually siliques, rarely silicles, usually dehiscent, unsegmented, usually terete, 4-angled, or latiseptate;

ovules 1–210[–numerous] per ovary;

style obsolete, distinct, or absent;

stigma usually entire or 2-lobed (subentire in Sibaropsis, Streptanthella).

oblong, 2–3 × 1.4–2 mm;

wing 0.1–0.2 mm wide at apex.

usually biseriate or uniseriate, rarely aseriate;

cotyledons accumbent or incumbent.

usually simple, rarely forked or dendritic [subdendritic], sometimes absent.