Flora of North America species comparison

(simple or few to many from base), usually erect to ascending, rarely subdecumbent, (slender), (0.5–)0.8–2.7(–3.5) dm.

erect to ascending, (slender or stout), 1.5–6.5 dm.

not rosulate;

petiole 0.5–1 cm;

blade margins 1-pinnatisect, (1–)2.5–7(–10) cm;

lobes (3–)6–12(–18) on each side, (smaller than terminal), linear to oblong or ovate, (1–)2–10 × 0.5–1(–2.5) mm, margins entire or coarsely dentate.

(soon withered), early rosulate;

petiole 1–4 cm;

blade margins 2- or 3-pinnatisect, 4–15 cm;

lobes 8–16 on each side;

apical segment oblong to ovate, 1–10(–12) × 0.5–2(–3.5) mm, margins entire.

(and bracts) similar to basal, smaller distally.

(and bracts) similar to basal, smaller distally (lobes fewer).

sepals spreading to ascending, oblong-linear, (3.5–)5–7 × 1–1.5 mm, apex appendage not developed;

petals spatulate, (8–)10–13 × 3–4.5 mm, apex rounded;

median filament pairs 5–7(–8) mm, not dilated basally;

anthers oblong, 1–1.5 mm;

gynophore (0.5–)1–2(–5) mm, or, rarely, obsolete.

sepals (persistent), erect, oblong-lanceolate, 9–12(–15) × 2–3.5 mm, apex appendage well-developed, (1–)2–4 mm;

petals broadly obovate, 12–15(–20) × (5–)7–11 mm, apex rounded;

median filament pairs 4–6 mm, slightly dilated basally;

anthers linear, 3–4 mm;

gynophore usually obsolete, rarely to 2 mm.

from racemes, (6–)10–22(–30) mm, (slender).

some from basal rosette (straight or slightly recurved), (30–)50–100(–180) mm.

usually oblong to elliptical, rarely suborbicular, usually latiseptate, rarely inflated, (0.5–)1–2.5(–3) cm × (3.5–)5–8(–11) mm, (not fleshy, thin-papery), base and apex acute;

valves faintly reticulate-veined;

replum flattened;

septum complete or perforated;

ovules (8–)10–20 per ovary;

style 3–9(–12) mm, slender or flattened basally.

oblong, somewhat inflated, (0.8–)1–2(–2.5) cm × 5.5–7.5 mm, (fleshy green, thick, leathery), base and apex obtuse to subacute;

valves (covered with well-developed vesicles), not veined;

replum rounded;

septum complete;

ovules 16–44 per ovary;

style 2–5(–7) mm, not flattened basally.

3–4 mm diam.;

wing 0.5–1 mm.

4–5 mm diam.;

wing 1–1.5 mm.

= 46, 138.

= 24.