Flora of North America species comparison

erect or suberect, to 71(–140) cm;

sterile stems to 18 cm.

erect or suberect, (25–)35–90(–120) cm;

sterile stems to 18 cm, usually absent.

of fertile stems: blade oblanceolate to linear, usually flat, 5–45(–60) × 0.8–4(–8) mm, apex acute or subobtuse.

of fertile stems: blade linear to linear-lanceolate, 4–68 × 1–7(–15) mm, apex acute.

1–117-flowered, dense;

bracts linear, 2–5(–5.5) × 0.3–1 mm.

11–31(–50)-flowered, usually dense, rachis glabrous or glandular-hairy, hairs 0.1–0.2 mm;

bracts linear to lanceolate, 4–20(–25) × 1–2 mm.

erect, 1–3 mm in flower, 2–4(–5) mm in fruit.

erect, 3–7.7 mm in flower, 3.5–8(–13) mm in fruit.

simple;

stigma entire.

simple;

stigma entire.

violet to purple, with yellow or lilac palate, 9–13(–17) mm;

tube 1.5–2.5 mm wide, spurs curved, 5–7(–9) mm, subequal to rest of corolla, abaxial lip sinus (0.6–)0.8–1.5(–2) mm, adaxial lip sinus 1 mm.

white, pale yellow, or bright yellow, sometimes with orange palate, 27–32(–33) mm;

tube 5.5–9(–10) mm wide, spurs straight or curved, 11–15 mm, slightly shorter or subequal to rest of corolla, abaxial lip sinus 3–3.5 mm, adaxial lip sinus (2.2–)2.4–4(–4.5) mm.

lobes linear to linear-lanceolate, 1.5–3 × 0.5–1 mm in flower, 2–3.5 × 0.7–1.2 mm in fruit, apex acute or subacute.

lobes lanceolate to ovate, 2.5–4.5 × 0.8–1.5 mm in flower, 2.5–5(–6) × 1–2(–2.5) mm in fruit, apex acute.

subglobular, 2.7–4 × 2.5–3.7 mm, glabrous;

loculi equal.

oblong-globular or ovoid, 5–10(–11) × 3–6 mm, glabrous;

loculi equal.

black or blackish brown, subtrigonous or ± tetrahedral, 0.8–1.2 × 0.6–1 mm, with longitudinal marginal ridges and anastomosed ridges or tubercles on faces;

wing absent.

gray, brown, or black, disciform, subglobular, with prominent encircling wing, 1.6–2.5(–3) × 1.5–2.3 mm, ± plane or biconvex;

disc gray, brown, or black, ± reniform, tuberculate;

wing ± entire, 0.4–0.7 mm wide, membranous, smooth.

= 12 (Europe).

= 12.