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, 20–50(–60) cm;

branches widely spreading, quadrangular-ridged, scabridulous or glabrate.

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 to +/- reflexed at mid stem, distalmost sometimes ascending;

blade linear-filiform, 10–30 x 0.2–0.6 mm, margins entire, adaxial surface glabrous or slightly 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 to slightly spreading-ascending, 12–28 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 campanulate to funnelform, tube 1.5–3 mm, glabrous, lobes spreading, deltate, 0.1–0.5 mm;

corolla pale to dark pink, rarely white, without 2 yellow lines and red spots in abaxial throat, 14–20 mm, throat glabrous externally and within across bases and sinus of adaxial lobes, lobes: abaxial spreading, adaxial projected flatly over anthers, 2.5–6 mm, unequal, abaxial 4–6 mm, adaxial 2.5–3 mm, glabrous externally;

proximal anthers parallel to filaments, distal perpendicular to filaments, pollen sacs 1.4–2.6 mm;

style exserted, 6–9(–10) mm.

globular, 4–7 mm.

globular, 3–5 mm.

tan to brown, 0.5–1.5 mm.

yellowish brown to tan, 0.5–0.7 mm.

= 28.

= 28.