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, 30–100 cm;

branches ascending-spreading, subterete to obtusely angular, finely ridged, glabrous 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.

spreading, proximal sometimes reflexed, distal appressed;

blade linear, 8–35 x 0.5–2 mm, margins entire, siliceous, adaxial surface finely scabrous;

axillary fascicles 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 pedicels.

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

spreading, often upcurved distally, (6–)10–30 mm, glabrous.

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 turbinate-campanulate, tube 3–5.5 mm, glabrous, lobes triangular-lanceolate, 0.8–2.5 mm;

corolla pink, with 2 yellow lines and red spots in abaxial throat, 15–35 mm, throat strongly upcurved, glabrous externally and within across bases and sinus of adaxial lobes, lobes: abaxial spreading, adaxial erect to spreading, 4.5–8(–10) mm, equal, glabrous externally;

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

style exserted, 12–17 mm.

globular, 4–7 mm.

globular-ovate to oblong, 5–8 mm.

tan to brown, 0.5–1.5 mm.

dark brown to black, 0.5–1 mm.

= 28.

= 26.