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, narrowly linear, occasionally linear-spatulate, rarely almost filiform, flat or occasionally slightly convolute (especially at maturity and in dry plants), 2–5 × 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.

usually narrowly ovate-lanceolate or lanceolate, (0.5–)1–1.5(–2) × 0.2–0.5 cm.

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

lax or slightly condensed, interrupted only near base, linear.

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.

pale, usually straw-colored or yellowish brown, occasionally with reddish brown spots, flattened or slightly convex abaxially, plane or slightly concave adaxially, rounded-obovate or obovate, distinctly broadest beyond middle (rarely closer to middle), 2.8–3.5(–3.8) × 2.4–2.8(–3.3) mm, slightly shiny or dull;

wing translucent, thin, usually 0.7–1 mm wide, margins erose or irregularly erose-denticulate (rarely almost entire), apex emarginate (notched) or rounded.