Flora of North America species comparison

4–25, erect, unbranched or branched near base, 20–40 cm, tomentulose, not glaucous, rhizomes absent.

1–16, prostrate to decumbent, unbranched, 8–25 cm, glabrous, glaucous, rhizomes absent.

opposite to subopposite, petiolate, with 1 or 2 stipular colleters on each side of petiole;

petiole 2–8 mm, tomentulose;

blade linear-lanceolate, 5–15 × 0.3–1.3 cm, chartaceous, base cuneate to rounded, margins often obscurely crisped, apex acute, mucronate, venation brochidodromous, surfaces tomentulose to glabrate, midvein puberulent with curved trichomes, margins minutely ciliate, laminar colleters absent.

opposite, sessile or petiolate, stipular colleters absent;

petiole 0–8 mm, glabrous, sometimes with a few long hairs at the base;

blade broadly ovate or oval to orbiculate or obovate, 3–7 × 1.8–6 cm, subsucculent, base cuneate or obtuse to cordate or truncate, margins entire, apex rounded to obtuse or acute, mucronate, venation eucamptodromous to faintly brochidodromous, surfaces glabrous, sometimes sparsely strigose on midvein abaxially, glaucous, margins ciliate, laminar colleters absent.

extra-axillary, pedunculate, 4–15-flowered;

peduncle 0.2–1.5 cm, tomentose, with 1 caducous bract at the base of each pedicel.

terminal, and usually extra-axillary at uppermost node, sessile, 3–10-flowered, with 1 caducous bract at the base of each pedicel.

9–15 mm, tomentose.

16–35 mm, glabrous.

erect;

calyx lobes ovate-lanceolate, 2–3 mm, apex acute, tomentulose;

corolla red-violet, sometimes green with red tinge, lobes reflexed, ovate, 4–6 mm, apex acute, minutely pilosulous;

gynostegium subsessile;

fused anthers brown, cylindric, 2–2.5 mm, wings right-triangular, closed, apical appendages ovate;

corona segments red-violet to pink basally, white apically, sessile, tubular, 1.5–2 mm, greatly exceeded by style apex, apex truncate, oblique, with a proximal tooth on each side, glabrous, internal appendage lingulate, slightly exserted, sharply inflexed towards gynostegium, glabrous;

style apex shallowly depressed, red-violet.

ascending to pendent, calyx lobes linear-lanceolate, 5–8 mm, apex acute, sparsely strigose to pilosulous;

corolla pale green to yellowish green, tinged red abaxially, lobes reflexed with spreading to ascending tips, oval, 8–14 mm, apex acute, glabrous abaxially, papillose at base and minutely hirtellous at tips adaxially;

gynostegium sessile;

fused anthers dark brown, sometimes green at apex, broadly cylindric, 1.8–3 mm, wings right-triangular with rounded apex, closed, apical appendages deltoid;

corona segments red-violet to pinkish purple, sessile, conduplicate, dorsally rounded, 5–8 mm, slightly exceeded by to exceeding style apex, base subsaccate, margins connivent, apex truncate, oblique, with recurved, papillose teeth, papillose, internal appendage absent;

style apex slightly depressed, pale green.

oval to ovate, 6–7 × 4–6 mm, margin winged, faces papillate-tomentulose with dendritic scales;

coma 2–2.5 cm.

ovate, 8–9 × 6–7 mm, margin very narrowly winged, faces rugulose;

coma 2–2.5 cm.

erect on upcurved pedicels, lance-ovoid, 5–7 × 1.2–1.8 cm, apex acuminate, shallowly ribbed, conspicuously striate, tomentulose.

sometimes paired, erect on upcurved pedicels, ovoid, 4.5–6 × 1.5–1.8 cm, apex apiculate, smooth, sometimes obscurely ribbed, glabrous, glaucous.