Flora of North America species comparison

absent.

absent.

solitary flowers, 5–30 cm;

axis white.

racemes or solitary flowers, nodding at emergence from soil, becoming erect in fruit, axis fleshy and fibrous, persistent after seed dispersal, white or yellowish to orange or reddish, 0.1–1 cm diam. proximal to proximalmost flower.

nodding at anthesis, erect in fruit.

nodding at anthesis, somewhat longer in fruit;

bracteoles sometimes present.

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.

radially symmetric, nodding;

sepals absent or (3–)4–5(–6), distinct, lanceolate, oblong, spatulate, or elliptic;

petals (3–)4–5(–6), distinct, white to pinkish, reddish, yellowish, or orange, without basal tubercles, abaxial surface glabrous, adaxial surface with scattered hairs or hairy, corolla tubular-campanulate;

intrastaminal nectary disc present;

stamens 8–10(–14), included;

filaments ± uniformly slender or slightly broader proximally than distally, glabrous or sparsely hairy;

anthers transversely ellipsoid to depressed-ovoid or horseshoe-shaped, without awns, without tubules, dehiscent by 1 slit;

pistil (4–)5(–6)-carpellate;

ovary (4–)5(–6)-locular;

placentation axile;

style straight, stout or slender;

stigma umbilicate to funnelform, with or without subtending ring of hairs.

capsular, erect, dehiscent basipetally loculicidal, no cobwebby tissue exposed by splitting valves at dehiscence.

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.

100+, oblong-fusiform, mostly membranously winged.

= 8.

= 32, 48.