Flora of North America species comparison

pubescent or glabrescent.

glabrescent when young.

unifoliolate;

stipules broadly lanceolate, 1–2 mm;

petiole 3–4 cm, glabrous;

blade broadly ovate to suborbiculate, 60–160 × 60–160 mm, 2-lobate 1/4–1/3 length, base cordate, 11–13-veined, apex of each lobe rounded, surfaces sparsely puberulous abaxially, glaucous, glabrous adaxially.

unifoliolate;

stipules broadly lanceolate, 1–2 mm;

petiole to 2 cm, sparsely strigose;

blade suborbiculate, 60–120 × 60–120 mm, 2-lobate 1/3–1/2 length, base rounded to cordate, 9–13-veined, apex of each lobe rounded to acute, surfaces sparsely hairy abaxially, glabrous adaxially.

3–8-flowered; mostly subterminal;

bract and bracteoles triangular, minute.

6–10-flowered;

terminal or subterminal;

bract ovate, 1–2 mm;

bracteoles similar to bract.

0.5 cm.

1–1.5 cm.

buds fusiform, 3–4 mm;

hypanthium tubular, 15 mm;

petals white or purple, obovate, subequal, 40–55 mm;

fertile stamens 5;

filaments shortly connate basally with staminodes, 20–40 mm;

anthers 7 mm;

staminodes 1–5, 2–3 mm;

gynoecium arcuate, nearly equaling stamens;

ovary pubescent (mainly on sutures), style and gynophore glabrous;

stigma capitate.

buds, clavate, 30–40 mm, 4 or 5-angled mainly toward somewhat twisted apex, velvety;

hypanthium tubular, 7–12 mm;

petals pink to dark purple, narrowly lanceolate, posterior broader, oblanceolate, subequal, 30–50 mm;

fertile stamens 3;

filaments shortly connate basally with staminodes, 30–40 mm;

anthers 5–7 mm;

staminodes 5 or 6, 6–10 mm;

gynoecium arcuate, nearly equaling stamens;

ovary velvety, style and gynophore glabrous;

stigma oblique.

stipe 15 mm;

linear, 200–300 × 20–25 mm.

stipe 10 mm;

linear, 200–250 × 25–25 mm.

10–25, brown, subglobose, 1–15 × 15 mm;

funicular aril lobes subequal, 1 mm.

10, brown, subglobose, 15 × 15 mm;

funicular aril lobes subequal, 2 mm.