Flora of North America species comparison

erect, pubescent.

prostrate to ascending, pubescent.

petiole 1–4 cm;

blade ovate-lanceolate, 2–5 × 0.7–2.7 cm, base rounded (sometimes asymmetric), margins crenate to serrate, apex acute.

petiole 0.1–0.5 cm;

blade ovate to orbiculate, 0.3–2.1 × 0.3–1.2 cm, base cordate or rounded, margins serrate-crenate, apex obtuse or acute.

unisexual, axillary (staminate) and terminal (pistillate; sometimes on short lateral branches, appearing axillary);

staminate peduncle 0.1–0.3 cm, fertile portion 0.1–0.6 cm;

pistillate peduncle 0.1–0.2 cm, fertile portion 2–5(–7) × 1.5–2.5 cm;

allomorphic pistillate flowers common, near apices of pistillate inflorescences.

bisexual, terminal;

peduncle 0.2–1 cm, pistillate portion 1.5–3 × 1–1.5 cm, staminate portion 0.8–2.5 cm;

allomorphic pistillate flowers absent.

of allomorphic flowers rudimentary.

pistil 3-carpellate (normal flowers), 2-carpellate (allomorphic flowers);

styles multifid or laciniate.

pistil 3-carpellate;

styles multifid or laciniate.

smooth, pubescent;

allomorphic fruits obovoid, longitudinally 2-ridged near apex, 1.4–1.6 × 1–1.2 mm, muricate, pubescent.

smooth, pubescent.

1.2–1.5 mm, coarsely pitted.

1.2–1.4 mm, minutely pitted.

bracts (normal and allomorphic flowers) crowded (inflorescence axis not or sparingly visible between bracts), 12–15 × 7–10 mm, abaxial surface pubescent and stipitate-glandular;

lobes (5–)9–13(–17), deltate to triangular, 1/8–1/4 bract length, except terminal lobe to 1/3 bract length.

bracts crowded (inflorescence axis not or sparingly visible between bracts), 4–6 × 7–10 mm, abaxial surface pubescent and sessile-glandular;

lobes (7–)10–13, deltate to triangular, 1/5 bract length.