Flora of North America species comparison

and leaf scales present.

and leaf scales present.

connate at base, ± linear, tapering strongly from near base or spatulate, 2.5–9 × 0.3–5 mm, 1+-veined.

connate at base, narrowly spatulate, 3.5–7.1(–7.2) × 0.7–1.4 mm, 1+-veined.

bracts caducous, sometimes persistent.

bracts absent.

0–0.2 mm in fruit.

1.2–3.3 mm in fruit.

usually 1 staminate and 1 pistillate in 1 axil opposed by 1 pistillate;

styles erect or spreading;

pollen yellow.

usually 1 pistillate and 1 staminate in each axil, sometimes 1 or 2 axils with 2 pistillate, rarely solitary;

styles sharply deflexed;

pollen yellow.

obovoid, usually widest distal to middle, 0.8–1.4 × 0.6–1.4 mm, longer than wide, sometimes as long as wide;

mericarps black, not swollen, not winged, winged only at apex, or winged throughout but widest at apex, wings straight, 0.03–0.1 mm wide.

0.7–0.9 × 1.1–1.4 mm, shorter than wide;

mericarps maroon or white, not swollen, winged throughout, wings straight, 0.1–0.2 mm wide.

= 20.

= 20.