Flora of North America species comparison

and leaf scales present.

and leaf scales present.

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

connate at base, obovate-oblanceolate to spatulate, (2.2–)2.7–5.7 × 0.7–2 mm, 2+-veined.

bracts absent.

bracts absent.

0.4–0.6 mm in fruit.

0–5 mm in fruit.

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

styles deflexed;

pollen yellow.

usually 1 staminate and 1 pistillate in 1 axil opposed by 1 pistillate, rarely both pairs at an axil with 1 staminate and 1 pistillate;

styles loosely ascending or ± reflexed;

pollen yellow.

(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 × 0.9–1.3 mm, shorter than wide;

mericarps black, not swollen, winged throughout, wings curled, giving appearance of thickened margins, 0.06–0.15 mm wide.

= 10.

= 20.