Flora of North America species comparison

(often inflated into 2.3 cm thick crown), usually ascending, rarely decumbent, 0.8–2.2 dm (when formed).

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

rosulate;

petiole 0.5–3(–5) cm;

blade margins usually 2-, rarely 3-pinnatisect, (2–)3–10(–15) cm;

lobes 5–10(–15) on each side, (smaller than terminal);

apical segment linear to oblong or ovate, 1–8(–12) × 0.5–1(–2.5) mm, margins entire.

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.

(and bracts, when present) similar to basal, smaller distally.

(and bracts) similar to basal, smaller distally.

sepals (caducous or tardily so), spreading, oblong, (6–)7–12(–14) × 2–3.5 mm, apex appendage well-developed, (1–)1.5–3 mm;

petals broadly spatulate to obovate, (12–)15–20 × (5–)6–9 mm, apex rounded;

median filament pairs 6–10 mm, not dilated basally;

anthers linear, 2–3 mm;

gynophore (1–)1.5–3(–4) mm.

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.

usually from basal leaf axil, (20–)30–80(–100) mm.

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

oblong to elliptical, latiseptate, 1.4–3.5(–4) cm × (8–)10–17 mm, (slightly fleshy when green, thick, papery), base and apex acute;

valves prominently reticulate-veined;

replum strongly flattened;

septum complete;

ovules 28–40 per ovary;

style (2–)3.5–6(–7) mm, strongly flattened basally.

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.

5–7 mm diam.;

wing 1–2 mm.

3–4 mm diam.;

wing 0.5–1 mm.

= 14.

= 46, 138.