Flora of North America species comparison

cauline (marcescent, crowded), opposite (rarely alternate);

petiole absent;

blade oblong to ± broadly obovate, unlobed, 2–5 mm, leathery, margins entire, bristly-ciliate, with 1(–3) lime-secreting hydathodes (in pit, secretion obvious), apex obtuse, surfaces glabrous.

cauline;

petiole absent;

blade linear to narrowly oblong, unlobed [with 2 toothlike lobes distally], 3–22 mm, succulent, margins entire, spinose-ciliate, sometimes eciliate, with 1(–5) lime-secreting hydathodes (not sunk in pits, secretions not obvious), apex obtuse or apiculate, surfaces glabrous.

solitary flowers, ebracteate, 1–5 cm, glabrate or sparsely purple-tipped stipitate-glandular.

2–15-flowered cymes or thyrses, sometimes solitary flowers, 2–15[–20] cm, glabrous or clear-tipped stipitate-glandular;

bracts sessile.

sepals erect, ovate, margins stiffly ciliate or not, surfaces hairy, stipitate-glandular, or glabrous;

petals purple to pink, rarely white, often drying violet, not spotted, obovate to elliptic, (2–)5–12(–20) mm, longer than sepals;

ovary ± superior.

sepals spreading, triangular, margins eciliate, surfaces glabrous;

petals yellow to orange, sometimes orange-spotted, elliptic, 3–7 mm, ± equaling or exceeding sepals;

ovary 1/2 inferior.

± folliclelike.

= 26.