Flora of North America species comparison

branched from base or near base, occasionally simple, slender, 5–50 cm.

ocrea deciduous or partially persistent;

blade spatulate, lanceolate, or ovate-lanceolate, 1–5(–8) × (0.5–)1–2.5 cm, base cuneate, rarely rounded, margins normally entire, flat, apex obtuse.

terminal, simple, racemose, occupying most of stem, interrupted, linear.

usually distinctly heteromorphic (much thickened distally), 4–7(–10) mm;

others less than 4 mm.

2–3(–4) in lax clusters (reduced whorls);

inner tepals variable, often heteromorphic, triangular, narrowly triangular, ligulate, or ovate-oblong, (1.5–)2–4(–5) × (0.5–)1–3 mm (excluding teeth), base truncate, margins usually dentate, sometimes entire, apex obtuse or acute, usually not hooked, teeth 2–4(–8), at each side of margins, slender, straight or hooked, 0.3–1 mm;

tubercles absent, or 3, usually represented by minute swellings barely recognizable as tubercles.

brown to dark brown, 1.3–2.3 × 0.7–1.4 mm.

= 16.