Flora of North America species comparison

unbranched or branched distally, (0.8–)2–8(–10) dm.

unbranched or branched, (often bristly proximally), 0.2–0.9 dm.

(soon withered); rosulate; petiolate;

blade 1- or 2-pinnatifid (with broadly linear to filiform lobes), 2–20 cm, margins sinuate-dentate.

(soon withered);

not rosulate; shortly petiolate;

blade oblong-orbicular to obovate, 0.7–1.5 cm, margins dentate.

blade linear, 1–10 cm × 1–3 mm, (smaller distally), base auriculate, margins entire.

blade broadly ovate to obovate, 0.8–1.7 cm × 4–13 mm (smaller distally), base amplexicaul, margins dentate.

ebracteate, (lax).

ebracteate, (with a terminal cluster of sterile flowers).

(markedly zygomorphic);

calyx urceolate;

sepals greenish yellow or purplish, (abaxial broadly ovate, not keeled, 4–6 × 3–4 mm, lateral ovate-lanceolate, keeled, 4–6 × 1.5–2 mm, adaxial suborbicular to broadly ovate-cordate, forming a bannerlike hood, keeled, 4–6 × 6–8 mm);

petals white (with brownish veins), 5–8 mm, blade 1–3 × 0.7–1.2 mm, margins crisped (channeled), claw 4–5 mm, wider than blade;

stamens in 3 unequal pairs;

filaments: abaxial pair (distinct), 4–5 mm, lateral pair 3–4 mm, adaxial pair (connate), 5–6 mm;

anthers: abaxial and lateral pairs fertile, 1.5–2 mm, adaxial pairs sterile, 0.3–0.7 mm;

gynophore 0.1–0.4 mm.

calyx narrowly campanulate;

sepals green to purplish or (sterile flowers) lilac-purple, (narrowly ovate, sterile flowers linear-lanceolate), 3–5 mm, (8–13 mm in sterile flowers), keeled basally (not keeled in sterile flowers; sparsely hirsute in fertile flowers, glabrous in sterile flowers);

petals purple (with darker purple veins), 8–11 mm, blade 4–6 × 2.5–3.5 mm, margins not crisped, (flaring), claw 4–5 mm, narrower than blade;

stamens in 3 unequal pairs, (purple);

filaments: abaxial pair (connate), 4–5 mm, lateral pair 2–3 mm, adaxial pair (connate nearly to apex), 5–6.5 mm;

anthers: abaxial and lateral pairs fertile, 1.4–1.8 mm, adaxial pair sterile, 0.4–0.8 mm;

gynophore 0.1–0.3 mm.

strongly recurved, 2–5 mm.

divaricate, 2–3 mm.

pendent, smooth, straight, flattened, 2.4–5.6 cm × 1.2–1.7 mm;

valves each with obscure or somewhat prominent midvein;

replum straight;

ovules (10–)18–50 per ovary;

style 0.8–2 mm;

stigma entire.

divaricate, smooth, curved upward, slightly flattened, 1.3–2.5 cm × 2.5–3.5 mm;

valves each with prominent midvein, (hispid, trichomes setiform, 0.5–0.8 mm);

replum straight;

ovules 46–60 per ovary;

style 0.2–0.5 mm;

stigma slightly 2-lobed.

oblong, 1.7–2 × 0.9–1.1 mm;

wing 0.2–0.3 mm wide, distal.

ovoid (plump), 1.2–1.5 × 0.6–0.8 mm;

wing absent.

= 28.

= 28.