Flora of North America species comparison

blades pale green abaxially, usually deep green adaxially, abaxial surface densely puberulent with scattered, stipitate-glandular trichomes.

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.

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

5–20 mm.

calyx strongly puberulent, usually not stipitate-glandular;

corolla usually densely puberulent adaxially.

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.

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

winged, obovoid, 0.6–1 mm.

= 24.