Flora of North America species comparison

simple or branched, 5–30(–47) cm;

branches spreading-ascending, obtusely quadrangular proximally to quadrangular with wings on angles distally, glabrous or sparsely scabridulous.

simple or branched, 70–160 cm;

branches stiffly erect or arching-ascending, terete, faintly ridged, glabrous.

spreading;

blade linear-elliptic to elliptic, 6–40 x 0.8–5 mm, not fleshy, margins entire, abaxial midvein sparsely scabrous, adaxial surface scabrous;

axillary fascicles absent or shorter than subtending leaves.

strongly-ascending;

blade linear-lanceolate, 10–50 x 1–3 mm, fleshy, margins entire, adaxial surface with sessile, dome-shaped hairs;

axillary fascicles absent.

racemes, flowers 2 per node;

bracts longer than pedicels.

racemes, elongate, flowers 1 or 2 per node, some flowers pseudoterminal;

bracts both shorter and longer than, or longer than, pedicels.

spreading-ascending, (0.8–)1.5–5.3(–6.5) mm, glabrous.

strongly ascending, 5–25 mm, glabrous.

calyx hemispheric-campanulate, tube 1.5–3 mm, glabrous, lobes triangular-lanceolate, 1.1–4(–5) mm, unequal, mid adaxial shortest;

corolla pale to dark pink, with 2 yellow lines and red spots in abaxial throat, or lines faint or absent, (8–)10–15 mm, throat pilose externally and villous within across bases and sinus of adaxial lobes, lobes: abaxial slightly spreading to projected, adaxial slightly spreading or projected distal to corolla mouth, 1.6–6 mm, unequal, pilose or densely so externally;

proximal and distal anthers parallel to filaments, pollen sacs 1–2 mm;

style included, (3–)4–7.5 mm.

calyx narrowly campanulate, tube 4–6.5 mm, glabrous, lobes deltate, 0.5–0.9 mm;

corolla pink, without 2 yellow lines and with dark pink spots in abaxial throat, 25–35 mm, throat pilose externally and villous within across bases and sinus of adaxial lobes, lobes: abaxial spreading, adaxial reflexed-spreading, 6–14 mm, pilose or sparsely so externally;

proximal and distal anthers parallel to filaments, pollen sacs 2.8–5 mm;

style exserted, 15–28 mm.

globular, 5–6 mm.

subglobular to globular, 5–7 mm.

brown, 0.9–1.5 mm.

dark brown to blackish, 1.1–1.5 mm.

= 28.

= 28.