Flora of North America species comparison

alternate (seemingly whorled on slow-growing twigs);

petiole 10–30 mm, glabrous or puberulent, sometimes stipitate-glandular;

blade elliptic to elliptic-lanceolate, 4–12 × 1.5–5 cm, margins plane, apex acute, surfaces stipitate-glandular, glabrescent abaxially, glabrous, midrib puberulent adaxially.

alternate;

petiole 0.1–1 mm, hirsute-puberulent;

blade elliptic to ovate, 0.5–1.4 × 0.1–0.8 cm, margins slightly revolute, apex acute, rounded-apiculate, surfaces usually puberulent, hispid, and stipitate-glandular, rarely glabrous.

terminal, panicles, (12–)20–40-flowered.

axillary, scattered along stem, usually solitary flowers, sometimes fascicles or compact racemes, 2–5-flowered.

20–40 mm.

10–15 mm.

sepals green to reddish, usually oblong, 3–3.5 mm, apex acute, surfaces glabrous or stipitate-glandular;

petals connate nearly their entire lengths, usually pink (ranging from deep red to white) with purple spots around each anther pocket, 20–25 × 15–30 mm, abaxial surface usually lightly stipitate-glandular, adaxial puberulent;

filaments 4–5 mm;

style 10–18 mm.

sepals tardily deciduous, green, lanceolate, 3–8 mm, apex acute, surfaces puberulent, hispid, stipitate-glandular;

petals connate their entire lengths, pink (rarely white), red near anther pockets, with ring of red spots proximal to pockets, 8–10 × 10–15 mm, usually sparsely hirsute and stipitate-glandular on keels abaxially, puberulent at base adaxially;

filaments 3–4 mm;

style 5–7.5 mm.

5-locular, 3–5 × 4–7 mm, stipitate-glandular.

5-locular, 2–3.5 × 2–4 mm, sparsely stipitate-glandular.

winged, obovoid and curved, 0.5–1 mm.

not winged, ovoid, 0.2–0.5 mm.

= 24.

= 24.