Flora of North America species comparison

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

erect, branched above middle, 25–75 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.

ocrea deciduous or partially persistent at maturity;

blade oblong-lanceolate to obovate-elliptic, 6–12(–15) × (2–)3–4(–5) cm, less than 4 times as long as wide, not coriaceous, occasionally subcoriaceous, base broadly cuneate or rounded, occasionally truncate, margins entire, flat or, rarely, weakly undulate, apex obtuse, rarely subacute.

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

terminal, occupying distal 1/2 of stem, usually lax, interrupted, broadly paniculate;

branches usually distinctly arcuate and flexuous.

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

others less than 4 mm.

articulated in proximal 1/3, filiform, 3–8 mm, articulation distinctly swollen.

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.

10–20 in rather dense remote whorls;

inner tepals deltoid or triangular-deltoid, 2.5–3.7(–4) × 2–2.8(–3) mm (excluding teeth), ca. 1.5 times as long as wide, base truncate, margins dentate or rarely subentire, apex acute to subacute, teeth 2–3, normally at each side of margins, triangular, 0.2–0.5 mm;

tubercles 3, unequal or, occasionally, subequal, normally less than 2 times as wide as inner tepals.

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

brown or reddish brown, 1.8–2.3 × 1.2–1.5 mm.

= 16.

= 20.