Flora of North America species comparison

erect, branching in distal 1/10–1/4(–1/3), (1.5–)2–11(–16) cm, sparsely to densely villous especially proximally, hairs reddish brown.

repent, decumbent, or ascending, branching in distal 1/4–1/2, 4–30 cm, glabrous.

alternate, fleshy.

opposite, sometimes alternate distally, membranous.

absent or 1(–2);

petiole 3–16(–24) mm, glabrous or sparsely villous, hairs reddish brown;

blade ovate to broadly ovate, reniform, or flabellate, 3.5–12 × 4.5–19 mm, base cuneate, margins 3–7-crenate, usually glabrous, sometimes villous, hairs white, surfaces glabrous.

4–9;

petiole absent or 0.1–4 mm, glabrous;

blade ovate to depressed-ovate, round, or flabellate, 2.5–15 × 2–10(–20) mm, base attenuate to cordate, margins 5–7(–9)-crenate or -crenulate, glabrous, surfaces glabrous abaxially and adaxially.

terminal, 3–30-flowered, compact cymes;

bracts green or greenish yellow, usually purple-spotted, foliaceous, usually ovate to flabellate or, rarely, elliptic, 3–13 × 2–15 mm, margins subentire or 3–7-crenate.

terminal or axillary solitary flowers or 2–10-flowered, open cymes;

bracts green, not purple-spotted, foliaceous, ovate to flabellate, 2–7 × 2–7 mm, margins subentire or 5–7-crenate or -crenulate.

absent or 0.1–1.5 mm.

absent or 0.1–0.8 mm.

hypanthium green or greenish yellow, sometimes purple-spotted distally, turbinate, 1.2–2.2 × 1.8–3.5 mm, glabrous;

sepals spreading, greenish yellow, purple, or reddish orange, usually purple-spotted throughout or distally, rarely not spotted, broadly ovate to depressed-ovate or nearly round, 0.9–2.3 × 1.2–3.1 mm, apex obtuse to rounded;

nectary disc prominent, yellow or purple, 8-lobed;

stamens 8, 0.7–0.9 mm;

anthers yellow or purple, 0.2–0.3 × 0.2–0.3 mm;

styles 0.5–0.9 mm.

hypanthium green, not purple-spotted, turbinate, 0.9–1.8 × 1.4–2.6 mm, glabrous;

sepals spreading to erect, green, greenish yellow, or greenish red, not purple-spotted or purplish brown-spotted distally, broadly triangular or broadly ovate to nearly round, 1.3–1.8 × 0.9–1.6 mm, apex obtuse to rounded;

nectary disc conspicuous, green or purple, 8-lobed;

stamens 4–8, 0.5–0.9 mm;

anthers purple, red, or orange, 0.2–0.3 × 0.4–0.5 mm;

styles 0.2–0.6 mm.

(2–)5–12, reddish brown, ovoid to ellipsoid, (0.8–)1–1.3 mm, glabrous.

6–16, dark brown, spheroid to ovoid, (0.5–)0.6–0.8 mm, puberulent.

leaves: petiole (7–)25–55(–68) mm, sparsely to densely villous, hairs reddish brown;

blade depressed-ovate to reniform, 4–19 × 7–24 mm, base cordate or truncate, margins 5–9-crenate, usually purple-spotted, usually ciliate, hairs white, surfaces glabrous or sparsely villous, especially near petiole, hairs usually white, brown, or reddish brown, sometimes purple.

leaves: petiole 1–4 mm, glabrous;

blade ovate to depressed-ovate, round, or flabellate, 2.5–15 × 2–10(–20) mm, base attenuate to cordate, margins subentire or 5–7(–9)-crenate or -crenulate, not purple-spotted, glabrous, surfaces glabrous abaxially and adaxially.

= 24.

= 18, 24.