Flora of North America species comparison

fascicled, erect, branching scattered proximally and crowded distally, (1.4–)2–3.5(–4) dm.

solitary or fascicled, erect, mostly unbranched, 1.5–4.5(–6) dm.

alternate;

stipules absent;

petiole absent;

blade linear, 2–4(–6) × 0.1–0.3(–0.4) cm, base acute, margins entire or remotely denticulate, teeth without prominent blackened tips, not incurved, apex usually acute, rarely acuminate;

venation not prominent.

alternate;

stipules linear-lanceolate, to 1 mm;

petiole absent;

blade linear to linear-lanceolate, (1–)3–6(–7) × 0.3–0.6(–1) cm, base cuneate to obtuse, margins crenate-dentate, teeth with prominent blackened tips, not incurved, apex acute;

midvein prominent, especially proximally, secondary veins obscure.

sessile or rarely short-pedunculate, 6–-7 cm;

staminate flowers crowded distally, 1 per node;

pistillate flowers 3–5, crowded;

bracts broadly ovate, to 1.5 mm, apex mucronulate or acuminate, glands patelliform, sessile, to 1.3 mm diam.

sessile, 3–9 cm;

staminate cymules crowded, 3–5-flowered;

pistillate flowers 3–4, crowded;

bracts broadly deltate, to 1 mm, apex acute, glands patelliform, sessile, 2 mm diam.

calyx to 1 mm.

calyx 1 mm.

sepals 0;

styles connate only at base, to 4 mm.

sepals persistent, 3, well developed, elliptic;

styles connate 3/4 length, to 4 mm.

oblate, 3 × 4 mm, deeply 3-lobed;

lobes of gynobase 1.5–2 mm;

columella persistent.

globose, 6–8 mm diam., shallowly 3-lobed;

lobes of gynobase 2–3 mm;

columella often persistent.

brown, often mottled, ovoid, 2.3 × 1.3 mm, smooth;

caruncle minute.

gray, ellipsoid, 5 × 5 mm, smooth;

caruncle white, broadly crescent-shaped, 1 × 1.3–1.5 mm.