Flora of North America species comparison

erect, minutely stellate-hairy, hairs to 0.5 mm.

usually crowded at stem apex;

stipules partially adnate to petiole, 1-veined, linear to oblanceolate, 4–12 mm, usually longer than petiole;

petiole 2–10 mm, 1/4–1/2 length of blade, with appressed stellate hairs;

blade narrowly elliptic, 1–2 cm, usually 2–3 times longer than wide, base truncate to subcordate, margins dentate apically, entire basally, apex acute or obtuse, surfaces stellate-hairy abaxially, glabrous adaxially.

stipules free from petiole, 1-veined, subulate, 3–6 mm, 1/2 as long as petiole;

petiole 5–15 mm, usually 1/4–1/2 length of blade, sometimes shorter, minutely stellate-hairy, hairs to 0.5 mm, usually with small spinelike tubercle on stem just below its attachment;

blade ovate, lanceolate, or narrowly oblong, 2–6 cm, smaller apically, 2–5 times longer than wide, base subcordate, margins crenate-serrate to base, apex usually acute, surfaces stellate-tomentulose abaxially, glabrate adaxially.

terminal, subsessile, usually 1–10-flowered, flowers crowded at branch apices because of shortening of internodes, obscurely solitary, axillary.

axillary solitary or 2–4 clustered flowers.

adnate to petiole of leaflike bract, 0.1–0.4 cm, shorter than calyx.

0.5–1 cm, subequal to calyx and subtending petiole.

calyx obscurely angulate, 4–6 mm, hirsute, lobes ovate;

petals usually salmon-pink, red-orange, sometimes yellowish, 5–11 mm;

staminal column hairy;

style 5–8-branched.

calyx angulate, 5–7 mm, minutely tomentose, lobes triangular;

petals yellow, rarely white, 5 mm;

staminal column glabrous;

style 5-branched.

conic, 5–6 mm diam., subglabrous;

mericarps 5–8, prominently muricate, otherwise glabrous.

subconic, 4–5 mm diam., hairy;

mericarps 5, 3–4 mm, somewhat rugose, apex spined, spines 1 mm, antrorsely hairy.

= 16.

= 14, 28.