Flora of North America species comparison

and leaf scales present.

and leaf scales absent.

connate at base, obovate-oblanceolate to spatulate, 1.5–3.9 × 0.8–1.4(–1.5) mm, 2+-veined.

not connate at base, ± linear tapering from base, 5.9–11.3 × 0.3–1.1 mm, 1-veined.

bracts absent.

bracts absent.

0.4–0.6 mm in fruit.

0–0.2 mm in fruit.

usually solitary or 1 staminate and 1 pistillate opposed by 1 pistillate;

styles deflexed;

pollen yellow.

usually solitary or 1 pistillate and 1 staminate in an axil;

styles reflexed or strongly curved;

pollen colorless.

(0.5–)0.6–0.7(–0.8) × (0.5–)0.8–1 mm, shorter than wide;

mericarps black, not swollen, winged only at apex, wings straight, 0.01–0.03 mm wide.

0.8–1.2 × 0.9–1.3 mm, as long as or shorter than wide;

mericarps brown or gray-brown, not swollen, winged throughout, wings straight, 0.05–0.1 mm wide, width less than mericarp body.

= 10.