Flora of North America species comparison

and leaf scales present.

and leaf scales present.

connate at base, obovate-spatulate to ± round, 4–9 × 1–4 mm, 1+-veined.

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

bracts persistent.

bracts absent.

0–0.2 mm in fruit.

0–5 mm in fruit.

solitary;

styles erect;

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.

1.2–1.8 × 1–1.7 mm, ± as long as wide;

mericarps pale grayish brown, not swollen, winged throughout, wings straight, 0.1–0.5 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.