Flora of North America species comparison

simple or branched, 10–100 cm;

branches ascending to spreading, quadrangular, sharply ridged to winged distally, glabrate, sometimes scabrous.

simple or branched, 30–100 cm;

branches ascending, obtusely quadrangular proximally, quadrangular-ridged distally, scabrous.

spreading, sometimes arching, ascending, or reflexed;

blade narrowly linear to linear-lanceolate, 10–70 x 0.3–6 mm, not fleshy, margins entire, adaxial surface scabrous;

axillary fascicles absent or shorter than subtending leaves.

spreading-ascending;

blade narrowly linear to linear, 14–35(–40) x 0.6–1.5 mm, not fleshy, margins entire, abaxial midvein scabrous, adaxial surface scabrous;

axillary fascicles usually to 1/2+ as long as subtending leaves, sometimes absent.

racemes, elongate, flowers 2 per node;

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

racemes, flowers 1 or 2 per node;

bracts shorter than or both shorter and longer than pedicels.

ascending-spreading, some upcurved distally, 6–25 mm, glabrous.

ascending, often arching upwards distally, 6–30 mm, scabrous, sometimes only proximally.

calyx obconic to hemispheric, tube 2.3–5.5 mm, glabrous, lobes subulate to triangular-subulate, 0.3–2 mm;

corolla pink to rose purple, with 2 yellow lines and red spots in abaxial throat, 7–23 mm, throat pilose externally and glabrous within across bases and sinus of adaxial lobes, lobes: abaxial projected or spreading, adaxial projected over distal anthers, 2–8 mm, abaxial pilose externally, adaxial glabrous externally or pilose proximally;

proximal anthers perpendicular or oblique to filaments, distal perpendicular and vertical to filaments, pollen sacs 1–4 mm;

style exserted, 6.7–18 mm.

calyx funnelform to obconic, tube 3–5 mm, glabrous, lobes recurved, triangular-subulate, 0.6–1.5 mm;

corolla dark pink, with 2 yellow lines and dark purple spots in abaxial throat, 15–26 mm, throat pilose externally and glabrous within across bases of adaxial lobes, sparsely villous at sinus, lobes: abaxial projecting-spreading, adaxial arched over anthers, 2–6 mm, unequal, abaxial 4–6 mm, adaxial 2–4 mm, glabrous externally;

proximal anthers perpendicular to filaments, distal oblique or perpendicular to filaments, pollen sacs 3–4 mm;

style exserted, 12–18(–20) mm.

globular, 4–7 mm.

globular, 5–7 mm.

tan to brown, 0.5–1.5 mm.

dark brown to nearly black, 0.8–1.6 mm.

= 28.

= 26.