Flora of North America species comparison

branched, 50–120 cm;

branches spreading-ascending, quadrangular-ridged, scabrous.

simple or branched, 20–40(–50) cm;

branches widely and laxly spreading, nearly terete, papillate proximally to glabrate distally, sometimes glaucous.

spreading-ascending;

blade filiform, 16–40 x 0.4–1 mm, margins entire, midvein harshly scabrous, adaxial surface scabrous;

axillary fascicles: length 1/2–1 times subtending leaves.

appressed to strongly ascending;

blade subulate to narrowly triangular, 0.8–2.1 x 0.4–0.7 mm, margins entire, siliceous, abaxial midvein scabrous, adaxial surface glabrate;

axillary fascicles absent.

racemiform-paniculiform, flowers 1 per node, some flowers pseudoterminal;

bracts shorter than pedicels.

paniculate, flowers 1 per node;

bracts shorter than pedicels.

spreading-ascending, 12–50 mm, scabrous.

ascending, 3–10(–12) mm, glabrous.

calyx hemispheric, tube 3–4(–5) mm, glaucous, lobes erect, subulate, 0.1–0.6 mm;

corolla dark pink to rose, with 2 yellow lines and purple spots in abaxial throat, 22–33 mm, throat sparsely pilose externally and glabrous within across bases of adaxial lobes, sparsely villous at sinus, lobes: abaxial reflexed-spreading, adaxial spreading, 6–12 mm, equal, glabrous externally;

proximal anthers parallel to filaments, distal perpendicular to filaments, pollen sacs 2.5–3.8 mm;

style strongly exserted, 9–18 mm.

calyx campanulate, tube 1.5–2.1 mm, glabrous, lobes triangular, siliceous at tips, 0.1–0.3 mm;

corolla pink, without 2 yellow lines and red spots in abaxial throat, 8–11 mm, throat glabrous externally and glabrous within across bases and sinus of adaxial lobes, lobes: abaxial spreading, adaxial arching forward and overlapped resembling a keel, 1.6–4.2 mm, unequal, abaxial 2.5–4.2 mm, adaxial 1.6–2.5 mm, glabrous externally;

proximal anthers parallel to filaments, distal perpendicular to filaments, pollen sacs 0.9–1.6 mm;

style exserted, 6.5–7.2 mm.

globular, 4–6 mm.

globular, 3–4 mm.

black, 0.5–0.8 mm.

tan, 0.5–1 mm.

= 26.

= 28.