Flora of North America species comparison

erect, to 100 cm, puberulent.

erect or rarely decumbent, to 100 cm, glabrous and sometimes glaucous or sparsely to densely puberulent, sometimes mixed with longer, spreading hairs.

petiole 0–10 mm;

blade linear to narrowly lanceolate, 2–7 cm.

petiole 0–2 mm;

blade linear or narrowly lanceolate to elliptic or ovate, 1.5–7 cm.

open racemes, axis straight;

buds erect, mucronate.

open or dense racemes, axis straight;

buds erect.

floral tube 7–13 mm;

sepals reflexed individually or in pairs, tips distinct in bud;

corolla bowl-shaped, petals usually lavender, white near middle with purple spot distally, rarely uniformly wine-red, 10–30 mm;

stamens 8, subequal;

ovary 8-grooved, shorter than adjacent internode;

stigma usually exserted beyond anthers.

floral tube 2–10 mm;

sepals reflexed individually or in pairs;

corolla bowl-shaped, petals lavender to purple, purplish red, or dark wine-red, often with red or purple spot near middle, tip, or base, 9–25 mm;

stamens 8, subequal;

ovary 8-grooved, length less than 8 times width;

stigma as long as or exserted beyond anthers.

10–30 mm.

10–30 mm, beak 0–2 mm.

brown or gray, 1–1.5 mm, scaly, crest 0.1 mm.

brown or gray, 1–2 mm, scaly, crest 0.2 mm.

= 18.