Flora of North America species comparison

fibrous.

to 3 m;

bark persistent, leathery.

trailing, mat-forming, 5–30 dm; rooting at nodes;

inflorescence branches ascending.

green;

blade sharply 3-angled in cross section, widest proximal to middle, adaxial side concave, outer angle serrate near apex, 5–11 × 1–1.5 cm.

cauline, opposite, slightly connate basally, sessile, those of each pair equal;

stipules absent;

blade straight or curved, rounded-triangular to sharply 3-angled in cross section, thick, fleshy, margins entire or dentate.

pedicel 20–60 mm.

terminal or axillary, flowers solitary;

bracts absent or 2, leaflike;

pedicel [absent or 1–]10–60[–100] mm, erect.

8–10 cm diam.;

calyx lobes 10–60 mm;

outer 2 lobes sharply 3-angled in cross section, abaxial angle serrate near apex, 30–60 mm;

inner 3 lobes smaller, with membranous margins;

petals (including petaloid staminodia) 100–200, yellow, aging pink, 2–4(–5)-seriate, 30–40 mm;

stamens 100 per series, yellow, 4(–7)-seriate, simple to plumose, 6–8(–12) mm;

anthers yellow;

stigmas radiating out over fruits, 8–15 mm.

showy, tubular, 3–10[–15] cm diam.;

calyx lobes 4–5, unequal, 2 larger ± opposite, sometimes leaflike, 2–3 inner, smaller, with expanded membranous margins;

petals (including petaloid staminodia) to 250, distinct, magenta, pink, yellow, cream, or white;

nectary absent;

stamens to 600, erect;

pistil 8–12[–25]-carpellate;

ovary inferior, 8–12[–25]-loculed;

placentation parietal;

style absent;

stigmas 8–12[–25], radiate, linear, plumose.

yellowish, clavate to subglobose, depressed apically, 20–35 mm.

berries, fleshy, edible, indehiscent;

valves absent.

ca. 1000.

to 1000, brown, obovoid, compressed, shiny, slightly tuberculate;

arils absent.

= 18.