Flora of North America species comparison

solitary flowers, 5–30 cm;

axis white.

nodding at anthesis, erect in fruit.

sepals (3–)5(–6), similar to subtending bracts, lanceolate to oblong, 7–10 × 4–6 mm;

petals (3–)5(–6), white to pinkish or reddish, obovate, 10–20 × 5–15 mm, base slightly saccate, margins entire, apex rounded or, rarely, slightly lacerate, adaxial surfaces with scattered hairs;

nectary lobes 10, elongate, curved-cylindric;

stamens 8–14;

filaments glabrous or sparsely hairy;

anthers horizontal at anthesis, transversely ellipsoid to depressed-ovoid, abaxial pair of sacs smaller;

ovary 6–12 × 5–9 mm, glabrous or sparsely hairy;

style 2–7 × 2–5 mm, glabrous or sparsely hairy;

stigma broadly funnelform, 2–6 mm diam., not subtended by ring of crowded hairs.

5-segmented;

segments persistent after seed dispersal, stout, 7–11 × 5–12 mm, often connected along margins by fine, pinnate, vascular strands.

0.5–1 mm, mostly membranously winged.

= 32, 48.