Flora of North America species comparison

erect, becoming decumbent, to 60 cm.

petiole to 25 mm;

blade usually hastate or ovate, distal sometimes elliptic, basally lobed or unlobed, to 8.4 × 5.5 cm, base usually truncate, sometimes obtusely cuneate, margins usually serrate or dentate to crenate, sometimes entire, apex acute.

persisting;

petiole present or absent;

blade linear-lanceolate to linear, margins very deeply lobed, lobes slender.

petiole absent;

blade ovate-lanceolate to linear, to 15 cm, margins deeply to shallowly lobed or entire.

green, ovate to lanceolate, 4.8–12.4 × 0.9–3.5 mm, width 1/8–1/2 length, not concealing capsule, margins usually entire, rarely 2-lobed.

(fruiting) 0.6–4 × less than 1 mm.

sepals (7–)9–16 mm;

petals yellow, 12–25 mm, apex acute or mucronate;

stamens 20+, 3–10 mm, filaments monomorphic, filiform, unlobed;

styles 7–15 mm.

petals creamy yellow to orange, 6.5–13 × 3.5–7 mm, apex cuspidate, hairy on apex;

stamens 20–35, 6–11 mm, filaments heteromorphic, 5 outermost narrowly spatulate, inner filiform;

style 8–10 mm.

clavate, 19–40 × 2–3.5 mm, axillary curved to 270° at maturity, usually inconspicuously longitudinally ribbed.

usually lingulate to funnelform, rarely ovoid, 10–18 × 4–5.8 mm, base rounded or cuneate, capsule and pedicel well-differentiated.

30–60, in 2+ rows distal to mid fruit, tan, usually dark-mottled, usually irregularly polygonal, occasionally triangular prisms proximal to mid fruit, surface colliculate under 10x magnification; recurved flap over hilum usually present;

seed coat cell outer periclinal wall domed, domes on seed edges less than 1/2 as tall as wide at maturity.

(4–)6–8 per capsule, pyriform, without transverse folds.

= 18.

= 20.