Flora of North America species comparison

sympodial, proliferatively spreading, filiform, units 2–30 cm × 1–2 mm, roots restricted to nodes.

sympodial, proliferatively branching, units 8–20 cm × 1–1.5 mm, roots restricted to nodes.

erect, 1–2.5 dm × 2–3 mm.

erect, 1.5–3.5 dm × 2–4 mm.

2–4 on fertile shoots, sessile;

blade elliptic, 5–12 × 2.5–4 cm;

base narrowly tapering;

apex acute or acuminate.

solitary on sterile shoots, 2–3 on fertile shoots, petiolate;

blade cordate, 6–10 × 5–8 cm;

base lobed, with deep sinus;

apex sharply acute;

proximal leaves short-petiolate, blade triangular to cordate, petiole 4–7 cm;

distal leaves petiolate, blade deeply cordate, petiole 7–10 cm.

racemose, simple, 5–15-flowered.

racemose, complex, 15–40-flowered.

3-merous;

tepals conspicuous, 2.5–4 × 1.5–2 mm;

filaments 1.5–2 mm;

anthers 0.5–0.7 mm;

ovary globose or cylindrical, 2–2.5 × 1.5–2.4 mm;

style 0.5–1.5 mm;

stigma distinctively 3-lobed;

pedicel 1–3 × 0.5 mm.

(1–)3(–4) per node, 2-merous;

tepals conspicuous, 2–3.2 × 1.5 mm;

filaments 1.5 mm;

anthers 0.2–0.4 mm;

ovary globose, 0.8–1 mm wide;

style 0.4–0.5 mm;

stigma distinctly 2-lobed;

pedicel 3–5 × 0.2–0.4 mm.

green with fine red spots when young, maturing to red, globose, 4–6 mm diam.

green mottled with red when young, maturing to deep translucent red, globose, 4–6 mm diam.

1–3, globose, 2 mm.

1–2, globose, 2–3 mm.

= 36.

= 36.