Flora of North America species comparison

erect or ascending, deeply buried, internodes 0.2-1.5 cm.

horizontal, shallow, internodes (0.6-)1-4 cm.

blade almost always variegate with white or silver along veins, cordate to cordate-reniform, 4-14 × 3-12 cm, apex acute to broadly acuminate, rarely obtuse;

surfaces abaxially sparsely hirsute, adaxially glabrous or sparsely hirsute along veins, marginal hairs ± perpendicular to margin.

blade not variegate, cordate to almost reniform, 4-6.5 × 7-10.5 cm, apex broadly rounded-acute to rounded;

surfaces abaxially sparsely appressed-hirsute, adaxially glabrous or sparsely hirsute along veins, marginal hairs perpendicular to margin or curved toward apex.

erect or nearly so;

peduncle 1.2-1.

descending;

peduncle 2-3.

tube subglobose, externally mottled red, sparsely to moderately hirsute, internally dark red, with purple hairs;

distal portion of sepal erect or spreading at anthesis, 17-52 mm, apex filiform-attenuate, abaxially pale green, hirsute, adaxially tan or brownish green, rarely red proximally, puberulent with crisped purple hairs;

pollen sacs 0.8-2.4 mm, sterile tip of connective on inner stamens dark red-brown, 1.2-3.8 mm, longer than pollen sacs.

tube cylindric, externally reddish, at least in part, glabrous or sparsely hirsute, internally white, rarely with longitudinal red stripes, with white or purple hairs;

distal portion of sepal strongly reflexed at anthesis, 4-8 mm, apex acute to apiculate or short-acuminate, abaxially purple, glabrous or sparsely hirsute, adaxially red, puberulent with crisped pale or purple hairs;

pollen sacs 1-1.5 mm, sterile tip of connective on inner stamens purple or brown, 0.5-1 mm, shorter than pollen sacs.

= 26.