Flora of North America species comparison

blades linear or narrowly linear (occasionally linear-lanceolate or almost filiform), usually plane or occasionally folded (especially in dry plants), 1.5–3.5(–4) × 0.1–0.3 cm.

blades linear-oblanceolate, linear, or rarely narrowly linear (usually rather abruptly narrowed into mucronulate apex), usually plane, (1–)1.5–3.5 × (0.1–)0.2–0.3 cm.

ovate-lanceolate,lanceolate, linear-lanceolate, or occasionally proximal ones almost linear, much longer than distal, 0.5–2(–3.5) × (0.2–)0.3–0.7 cm.

ovate, ovate-lanceolate, or narrowly ovate-lanceolate, 0.5–1.5(–2.5) × (0.3–)0.5–1 cm.

usually lax, interrupted, rarely ± condensed distally, linear, narrowly linear, or occasionally narrowly clavate.

rather compact, dense, condensed in distal 1/2, occasionally interrupted in proximal 1/2, usually clavate or clavate-linear (rarely ± ovate).

segment 1.

segment 1.

yellowish brown, greenish brown, light brown, or brown, often with reddish brown spots and whitish warts, slightly convex abaxially, usually plane or slightly concave adaxially, obovate or obovate-elliptic, usually broadest beyond middle, (2.3–)2.5–4.5 × 2–3.5 mm, shiny or dull;

wing translucent, thin, (occasionally translucent only at margin, thick), (0.15–)0.2–0.3(–0.4) mm wide, margins entire or rarely indistinctly erose, apex broadly triangular, less commonly truncate or rounded.

yellowish brown, light brown, or dark brown, usually with reddish brown spots and occasionally whitish warts, strongly convex abaxially, plane or slightly convex (occasionally slightly concave) adaxially, elliptic or obovate-elliptic, usually broadest beyond middle, 1.8–3(–3.2) × 1.5–2 mm, dull;

wing absent or to 0.1(–0.15) mm wide, margins entire, apex triangular.