Flora of North America species comparison

usually in whorls of 3, rarely alternate or opposite;

petiole 6–16 mm, usually puberulent;

blade oblong to elliptic-lanceolate, 1.5–8 × 0.5–2.5 cm, margins usually plane, apex obtuse to acute, usually apiculate, abaxial surface glabrous or puberulent, sometimes stipitate-glandular, adaxial lightly puberulent (hairs white, to 0.1 mm), sometimes glabrescent, midrib puberulent.

opposite;

petiole 0.1–3 mm, glabrous or puberulent (base ciliate);

blade usually oblong to linear, sometimes oval, 1.5–4.5 × 0.3–1.5 cm, margins usually revolute, apex obtuse to acute, abaxial surface puberulent, adaxial glabrate with puberulent bands on either side of midrib, midribs on both surfaces covered with purple, clavate trichomes.

axillary near distal end, corymbiform racemes, 4–12-flowered.

solitary flowers or terminal, corymbiform racemes, 3–8(–17)-flowered.

5–20 mm.

15–30 mm.

sepals usually green, sometimes reddish apically or throughout, ovate, 2–2.8 mm, apex usually acuminate, surfaces puberulent;

petals connate nearly their entire lengths, usually reddish purple to pink, rarely white or bluish pink, usually deeper colored near anther pockets and with ring of red to purple spots just proximal to pockets, 7.5–9.5 × 6–13 mm, abaxial surface puberulent, adaxial glabrous, puberulent toward base;

filaments 2.5–3.5 mm;

style 3.5–4.5 mm.

sepals pale, translucent, white to light pink, ovate, 2.9–4 mm, apex obtuse, surfaces glabrous, margins ciliate;

petals connate their entire lengths, usually rose-purple or pink, rarely white, 9–11 × 12–18 mm, glabrous except puberulent near base abaxially;

filaments 4–5 mm;

style 4.5–7 mm.

5-locular, 2–3.5 × 3–5 mm, puberulent, stipitate-glandular.

5-locular, 4–6 × 4–7 mm, glabrous.

winged, obovoid, 0.6–1 mm.

winged, oblong, 1.5–2.2 mm.

= 24.

= 48.