Flora of North America species comparison

blade spheric to spatulate, 2–25 × 1–3 mm, fleshy to succulent, surfaces glabrous.

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

2–3-flowered fascicles or solitary flowers.

2–3-flowered fascicles or solitary flowers.

1–5 mm.

2–8 mm.

bisexual or pistillate, 4-merous;

calyx campanulate, 2–4-lobed, 2–3 mm, lobe lengths 0.3 times tube;

corolla white to pale purple, campanulate, 2–6 mm, lobe lengths to 1 times tube;

stamens exserted (bisexual flowers) or included, with nonfunctional anthers (pistillate flowers).

(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.

orange to red, ovoid, 2–6 mm, thinly fleshy.

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

2, each enclosed by a hard layer.

6–10.

= 24, 36, 48.

= 24.