Flora of North America species comparison

blade spatulate to oblanceolate, 10–35 × 2–23 mm, surfaces usually densely glandular-pubescent.

blade lanceolate to oblong, 20–60 × 3–35 mm, surfaces glabrous.

2–3-flowered fascicles or solitary flowers.

2–4-flowered fascicles or solitary flowers.

2–8 mm.

10–20 mm.

(4–)5-merous;

calyx narrowly campanulate, 4–14 mm, lobe lengths 0.5–1 times tube;

corolla white or greenish yellow, sometimes purple-veined, tubular to funnelform, 8–15 mm, lobes 1.5–3 mm;

stamens included to exserted.

4–6-merous;

calyx campanulate, often 2-lobed, 3–5 mm, lobes 1–2 mm;

corolla lavender to purple, funnelform, 8–13 mm, lobe lengths 0.5–1 times tube;

stamens exserted.

greenish yellow to orange, ovoid, constricted at or distal to middle, 5–10 mm, dry, hard, strongly accrescent calyx usually rupturing with fruit growth.

red or orange-yellow, ovoid, 4–20 mm, fleshy.

6–10.

4–20.

= 24.

= 24.