Flora of North America species comparison

repent, decumbent, or ascending to erect, leafy or leafless, (1.2–)2–30 cm (often as short as 2 cm in C. wrightii), glabrous or sparsely to densely villous.

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.

cauline or arising from stolons or rhizomes, opposite or alternate;

stipules absent;

petiole present, glabrous or villous;

blade ovate, depressed-ovate, depressed-elliptic, reniform, flabellate, or, sometimes, nearly orbiculate, unlobed, base attenuate, cuneate, truncate, or cordate, ultimate margins subentire, crenate, crenulate, or crenate-dentate, crenae sometimes prominent and margins appearing ± lobed, apex obtuse, rounded, or truncate, surfaces glabrous or sparsely villous to villous;

venation palmate.

alternate, fleshy.

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.

simple or compound cymes, from terminal bud in rosette, 2–30-flowered, sometimes flowers solitary, bracteate.

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.

absent or 0.1–1.5 mm.

hypanthium 1/2–3/4 adnate medially or distally to ovary, 0.5–1.5 mm free from ovary, greenish or yellow-green;

sepals 4, yellow, greenish yellow, green, greenish red, reddish orange, or purple, sometimes purple-spotted;

petals absent;

nectary disc conspicuous or apparently absent;

stamens 2–8, usually 4 or 8;

filaments lanceolate to narrowly oblong;

ovary 1/2–3/4-inferior, 1-locular, carpels connate 3/4–4/5 their lengths;

placentation parietal;

styles 2;

stigmas 2.

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.

(cuplike after dehiscence), 2-beaked (beaks divergent).

dark brown or reddish brown, ellipsoid, ovoid, or spheroid, smooth.

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

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.

= 11.

= 24.