Flora of North America species comparison

simple or few from base (rosette), erect, unbranched or branched (few) distally, 3–7 dm, (hirsute basally, glabrous distally).

simple or several from base (rosette), erect, often branched distally, 1–8 dm, (pilose with trichomes appressed, malpighiaceous, or minutely stalked, forked, or hirsute basally with trichomes simple and minutely stalked, forked, sometimes almost exclusively pubescent with forked submalpighiaceous trichomes).

petiole 0.5–2 cm, (ciliate or not);

blade spatulate, oblanceolate, or obovate, 1.5–6 cm × 5–15 mm, margins dentate, apex obtuse or acute, abaxial surface moderately to sparsely pubescent, trichomes subsessile stellate, adaxial surface subglabrate or sparsely stellate.

petiole 0.5–2 cm, (ciliate or not);

blade spatulate, oblanceolate, or oblong, (0.8–)1.5–8 cm × (5–)10–25 mm, margins entire, repand, or dentate, apex obtuse or acute, surfaces sparsely to densely pubescent, trichomes sessile or stalked, simple or forked, and/or stellate.

7–26;

blade oblong, lanceolate, or linear-lanceolate, 1.5–7 cm × 3–18 mm, base auriculate to subamplexicaul, margins dentate or entire, apex acute or obtuse, pubescent as basal leaves except distalmost leaves often glabrous.

(7–)10–45(–61), (overlapping or not);

blade ovate to oblong or lanceolate, rarely linear, (1–)1.5–6(–8) cm × (1–)3–20(–25) mm, base subcordate or auriculate (auricles obtuse or subacute), margins dentate or entire, apex acute or obtuse, surfaces hirsute or adaxially glabrescent.

often simple.

often simple.

sepals oblong, 2.5–4.5 × 1–1.5 mm, lateral pair subsaccate basally;

petals white, narrowly spatulate or oblanceolate, 6–9 × 1–1.5 mm, apex obtuse;

filaments 3–4.5 mm;

anthers oblong, 0.8–1 mm.

sepals oblong, 2.5–4 × 0.5–1.5 mm, lateral pair not saccate basally;

petals white, linear-oblanceolate or narrowly spatulate, 3.5–5(–5.5) × 1–2(–2.5) mm, apex obtuse;

filaments 2.5–4 mm;

anthers oblong, 0.7–1 mm.

erect to erect-ascending, 7–16 mm, (glabrous).

erect to erect-ascending, (2–)3–8(–12) mm (glabrous or sparsely pubescent).

erect to erect-ascending, (often subappressed to rachis), smooth, 4–7 cm × 0.7–0.8 mm;

valves each with midvein extending full length or to middle;

ovules 38–44 per ovary;

style 0.7–1.8 mm.

erect to erect-ascending, (often appressed to rachis), torulose, (3.5–)4–6(–6.5) cm × 0.8–1(–1.2) mm;

valves each with obscure or somewhat prominent midvein extending to the middle;

ovules (54–)60–86 per ovary;

style (0.2–)0.5–1(–1.3) mm, (slender).

narrowly winged throughout, oblong, 0.9–1.9 × 0.5–0.7 mm;

wing to 0.1 mm wide distally.

narrowly winged throughout, oblong or suborbicular, (0.8–)1–1.5(–1.7) × 0.8–1.3 mm;

wing to 0.2 mm wide distally.