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.

branched, 37–80 cm;

branches ascending-spreading, terete proximally, obtusely quadrangular-ridged distally, glabrate or sparsely scabridulous.

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.

mostly spreading, proximal often +/- reflexed;

blade filiform to narrowly linear, 10–36 x 0.3–1 mm, margins entire, adaxial surface scabridulous;

axillary fascicles absent or shorter than subtending leaves.

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 pedicels.

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

ascending, 9–30 mm, scabridulous.

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 hemispheric, tube 3–5 mm, glabrous, lobes triangular-subulate to subulate, 0.4–0.8(–1.3) mm;

corolla pink to rose pink, with 2 yellow lines and red spots in abaxial throat, 14.5–24 mm, throat glabrous externally, sometimes pilose proximal to sinuses, glabrous within across bases of adaxial lobes, sparsely villous at sinus, lobes: abaxial spreading to recurved, adaxial arched over anthers, 4.5–9 mm, unequal, abaxial 5.5–9 mm, adaxial 4.5–6 mm, glabrous externally;

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

style exserted, 13–17 mm.

globular, 4–7 mm.

globular to obovoid-globular, 5–7 mm.

tan to brown, 0.5–1.5 mm.

dark brown, 0.8–1.8 mm.

= 28.

= 26.