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 2–30 cm × 1–1.5 mm, roots restricted to nodes.

erect, 1–2.5 dm × 2–3 mm.

erect, 1–1.8 dm × 1–2.5 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;

blade 4.5–7(–9) × 3–4.5(–5.5) cm, apex acute or short-caudate;

proximal leaves sessile, blade ovate, base with narrow sinus;

distal leaves petiolate, blade cordate, petiole 1–7 mm.

racemose, simple, 5–15-flowered.

racemose, complex, 12–25-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–)2(–3) per node, 2-merous;

tepals conspicuous, 1.5–2 × 0.8–1 mm;

filaments 1–1.5 mm;

anthers 0.2–0.4 mm;

ovary globose, 0.8–1 mm wide;

style 0.5–0.8 mm;

stigma distinctly 2-lobed;

pedicel 3–7 × 0.2–0.5 mm.

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

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

1–3, globose, 2 mm.

1–2, globose, 3 mm.

= 36.

= 36, 54, 72.