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, 7–100 cm;

branches ascending, terete, ridged, scabridulous proximally, angular, ridged, scabrous distally, sometimes sparingly.

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.

ascending;

blade linear to filiform, 15–50(–60) x 0.4–1.5(–2) mm, margins entire, siliceous, adaxial surface scabrous;

axillary fascicles well developed, shorter to longer 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 longer than pedicels.

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

ascending-spreading, 4–20 mm, glabrous or proximally 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 campanulate, tube (3–)3.5–5 mm, glabrous, lobes triangular-lanceolate, (1.5–)2–4 mm;

corolla pink, with 2 yellow lines and dark red spots in abaxial throat, 15–28 mm, throat pilose externally and glabrous within across bases and sinus of adaxial lobes, lobes: abaxial projecting to spreading, adaxial spreading to erect, 3–7 mm, glabrous externally;

proximal anthers parallel to filaments, distal perpendicular to filaments, pollen sacs 1.8–3 mm;

style included or exserted, 8–15 mm.

globular, 4–7 mm.

ovoid-oblong, 6.5–11 mm.

tan to brown, 0.5–1.5 mm.

dark brown, 0.9–2 mm.

= 28.

= 26.