Flora of North America species comparison

1–few, erect, unbranched (rarely branched), 30–125 cm, tomentose to puberulent with curved trichomes, not glaucous, rhizomatous.

1–10, erect to spreading, rarely branched, 30–100 cm, tomentose to puberulent with curved trichomes or glabrate, not glaucous, rhizomatous.

opposite, petiolate, with 1 or 2 stipular colleters on each side of petiole, sometimes also in axil;

petiole 4–12 mm, tomentose to pilose;

blade lanceolate or ovate to oblong, 6–20 × 2–14 cm, chartaceous, base rounded to truncate or cordate, margins entire, apex acute to obtuse, sometimes mucronate, venation faintly brochidodromous, surfaces tomentose to pilose, margins ciliate, 6–32 laminar colleters.

opposite, or alternate or whorled at upper nodes, petiolate, with 0–2 stipular colleters on each side of petiole (sometimes additionally in the axil);

petiole 4–15 mm, tomentose;

blade oblong or oval to lanceolate or ovate, often conduplicate, 8–20 × 2–8 cm, chartaceous, base obtuse or truncate to cordate, margins entire or often undulate, apex acuminate to obtuse, mucronate, venation brochidodromous, surfaces tomentose to densely puberulent with curved trichomes, margins ciliate, 6–8 laminar colleters.

extra-axillary, pedunculate, 3–34-flowered;

peduncle 1–10 cm, densely tomentose, with 1 caducous bract at the base of each pedicel.

terminal, sometimes branched, and extra-axillary at upper nodes, pedunculate, 12–57-flowered;

peduncle 1–10 cm, densely tomentose, with 1 caducous bract at the base of each pedicel.

13–30 mm, densely tomentose.

15–50 mm, densely tomentose.

erect to pendent;

calyx lobes elliptic, 4–8 mm, apex acute, tomentose;

corolla dark pink (rarely pale), lobes reflexed with spreading tips, elliptic, 9–12 mm, apex acute, densely pilose abaxially, hirtellous at base adaxially;

gynostegial column 0.5–1 mm;

fused anthers green and brown, truncately obconic, 2.5–3 mm, wings right-triangular, open, widely so at base, apical appendages deltoid;

corona segments pale pink to nearly cream, sessile, scoop-shaped, 9–15 mm, exceeding style apex, apex truncate with proximal tooth on each side and long-attenuate, flared, glabrous, internal appendage subulate, exserted, sharply inflexed over style apex, glabrous;

style apex shallowly depressed, green to cream or pink.

erect to spreading;

calyx lobes lanceolate, 3–4 mm, apex acute, densely tomentose;

corolla greenish cream, ochroleucous, or pinkish cream, deep pink or tan abaxially, lobes reflexed, tips usually spreading, oval, 7–9 mm, apex acute, tomentose abaxially towards tips, glabrous adaxially;

gynostegial column 1–1.5 mm;

fused anthers dark brown, cylindric, 2.5–3 mm, wings right-triangular, closed, apical appendages ovate;

corona segments cream to dark pink, stipitate, conduplicate, dorsally rounded, 2.5–3 mm, exceeded by style apex, apex truncate, oblique, papillose, internal appendage falcate, exserted, sharply inflexed towards style apex, papillose;

style apex shallowly depressed, cream.

ovate, 7–9 × 4–5 mm, margin winged, faces rugulose;

coma 2.5–3 cm.

ovate, 7–9 × 4–6 mm, margin narrowly winged, faces faintly rugulose;

coma 2.5–3 cm.

erect on upcurved pedicels, lance-ovoid, (5–)9–12 × 2–3 cm, apex long-attenuate, muricate or smooth, densely tomentose.

erect on upcurved pedicels, lance-ovoid, 5–10 × 1.5–3 cm, apex apiculate, smooth, densely tomentose.

= 22.