Flora of North America species comparison

scandent, ribbed, glabrous;

prickles 0.5–1 mm.

usually scandent or, rarely, ascending or erect, simple or branched, with recurved prickles.

ocrea tan or brownish, cylindric, 8–15 mm, chartaceous, base inflated or not, with prickles, margins oblique, ciliate with bristles 0.5–2.5 mm, surface glabrous or appressed- to spreading-pubescent;

petiole 1–7 cm;

blade broadly hastate to hastate-cordate or triangular, (2–)6.5–13(–18) × (1–)6–11(–16) cm, base truncate to truncate-cordate, margins broadly hastate with lobes divergent, ciliate, sometimes also retrorsely prickly, apex acuminate, faces appressed-pubescent or, rarely, glabrous adaxially, stellate-pubescent or, rarely, glabrous abaxially, major veins often bearing prickles.

ocrea chartaceous or foliaceous, margins eciliate or ciliate;

petiole, if present, rarely winged, not auriculate;

blade without dark triangular or lunate blotch adaxially, broadly lanceolate or elliptic to triangular, base truncate to sagittate to cordate, margins entire or hastately lobed.

capitate or paniclelike, uninterrupted, 5–12 × 3–8 mm;

peduncle 10–80 mm, retrorsely prickly proximally, stellate-pubescent and stipitate-glandular distally, glands red or pink;

ocreolae usually overlapping, sometimes not overlapping proximally, margins eciliate or ciliate with bristles to 0.5 mm.

terminal and axillary, spikelike, paniclelike, or capitate, uninterrupted or, rarely, interrupted proximally.

mostly ascending, 2–3 mm.

2–4 per ocreate fascicle;

perianth pink or red, often whitish green proximally, glabrous, accrescent, not becoming blue and fleshy in fruit;

tepals 4, connate 1/3–1/2 their length, broadly elliptic, 5–6 mm, apex acute to obtuse;

stamens (6–)8, filaments distinct, free;

anthers pink, elliptic;

styles 2, distinct.

homostylous, articulation swollen or not;

perianth campanulate;

tepals 4–5, connate 1/4–1/2 their length;

stamens 5–8;

styles deciduous, 2–3, included or, rarely, exserted, erect or spreading.

included, dark brown to black, biconvex, 3.5–6 × 3–4 mm, shiny, smooth.