Flora of North America species comparison

erect to decumbent, often reddish, much-branched, purple-red glandular-setose, glandular-viscid.

erect, usually unbranched, sometimes with 1 or 2 long branches from near base, minutely white-strigose and purple glandular-setose, especially viscid on youngest internodes.

3- or 4-whorled at mid stem, sessile;

blade lanceolate, or linear distally, 10–25 × 1.5–5 mm, base rounded.

leafy.

bracteate, ± terminal.

1–5 mm.

4–25 mm.

alternate, solitary, interpetiolar, sometimes with 1 axillary;

floral tube pale abaxially, deep purple-red adaxially, 8–12 × 1–2 mm, purple-red glandular-setose;

base rounded or a descending spur, 0.5–1 mm;

inner surface glabrous proximally, densely villous distal to stamens;

epicalyx segments thick, 2 flanking the adaxialmost sepal terminated by a bristle;

sepals unequal, adaxialmost longer;

petals 6, purple, oblanceolate, unequal, 4 abaxial petals 2–5 × 0.4–0.6 mm, 2 upper petals 3–6 × 1.5–2.5 mm;

stamens (5–)11, reaching or surpassing sinus of sepals.

opposite or 3- or 4-whorled;

floral tube often fading abaxially, red-purple to rose adaxially, 7–9 × 1–2 mm, white-strigose, veins purple glandular-setose;

base rounded or a descending spur, 1 mm;

inner surface glabrous proximally, villous distal to stamens;

epicalyx segments thick, often terminated by a bristle;

sepals equal;

petals 6, pale purple or pink, cuneate-oblong, subequal, 3–4.5 × 0.6–1 mm;

stamens 11, reaching or surpassing sinus of sepals.

7–10, oblong-elliptic in outline, 2.3–2.8 × 1.8–2.3 mm, margin rounded.

3, orbiculate in outline, 2.5 × 2.5 mm, margin rounded.

, petiolate;

petiole (2–)5–15(–20) mm;

blade narrowly lanceolate to narrowly ovate, 20–50 × 6–20 mm, base attenuate.

= 12.

= 48.