Flora of North America species comparison

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

erect, stellate-puberulent.

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.

stipules free from petiole, 1-veined, linear to falcate, 5–7 mm, 1/2–1 times length of petiole;

petiole 2–10 mm, to 1/4 length of blade, obscurely puberulent;

blade narrowly oblong-lanceolate, 2–4.5 cm, 6–15 times longer than wide, base truncate, margins dentate to base, apex acute, surfaces sparsely hairy abaxially, glabrous adaxially.

axillary solitary or 2–4 clustered flowers.

axillary, solitary flowers, usually congested apically.

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

usually to 1 cm, subequal to calyx, much shorter than subtending leaf.

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

petals yellow, rarely white, 5 mm;

staminal column glabrous;

style 5-branched.

calyx ribbed, 6–7 mm, minutely hairy, lobes triangular;

petals yellow-orange to reddish, sometimes drying lavender, 10–12 mm;

style 10–12-branched.

subconic, 4–5 mm diam., hairy;

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

oblate, 6–7 mm diam., apically puberulent;

mericarps 10–12, 3 mm, obscurely reticulate laterally, apex muticous.

= 14, 28.

= ca. 14.