Flora of North America species comparison

erect, glabrescent or sparsely hairy, hairs fine, usually appressed;

older stems 6–13 mm diam.

petiole 0.3–1.5 cm;

blade linear, linear-lanceolate, lanceolate, narrowly ovate, or elliptic, 5–15 × 0.4–3 cm (L/W = (2–)4–24), base narrowly acute, apex narrowly acute, acute, or obtuse, surfaces glabrescent or sparsely appressed-hairy.

alternate, simple;

stipules present, persistent;

petiole present, glands absent;

blade unlobed, margins serrate, laminar glands absent;

venation pinnate or weakly palmate at base, pinnate distally, secondary veins straight, closely spaced, and parallel [arched, moderately spaced].

1.5–7 cm, peduncle 0.5–3 cm, fertile portion 0.7–5 cm, with 1–2 pistillate flowers.

bisexual (pistillate flowers proximal, staminate distal) [unisexual], axillary, spikes or racemes;

glands subtending each bract 0.

present or absent.

petals narrowly obovate, 2–2.3 mm, often unequal, exerted well beyond calyx.

sepals 5, valvate, connate basally;

petals 5, distinct, adnate to base of staminal column, white;

nectary absent;

stamens 10, in 2 whorls, connate basally;

pistillode present, at top of staminal column.

sepals ovate or elliptic, longest 2–2.4 mm, becoming 3–4.5 mm in fruit;

petals 1.9–2.9 mm;

ovary densely covered in bulbous-based, nonglandular trichomes.

sepals persistent, often enlarging in fruit, 5–8(–10), connate basally, unequal, small outer lobes often present alternating with larger lobes;

petals 5(–6) [often rudimentary], distinct, white;

nectary absent;

pistil 3-carpellate;

styles 3, connate basally [distinct], deeply multifid, branches [9–]12–21 per flower.

capsules, densely muricate.

5–6 mm wide, trichomes conic proximally, hairlike distally, nonglandular.

pale brown, 3 mm diam.

subglobose;

caruncle absent.

= 11.