Flora of North America species comparison

(24–)30–100 cm.

erect, (5–)10–50 cm, glabrous or retrorsely hairy, hairs pointed.

basal and proximal cauline 20–52 × 3–11 mm, blade base tapered, margins entire, apex obtuse;

cauline 4–12 pairs, 20–70 × 2–14 mm, blade base tapered, apex obtuse or acute.

leathery, sparsely retrorsely hairy, hairs pointed, especially along margins, or glabrous;

cauline 10–30 pairs, sessile, 4–32 × 0.5–1.2 mm, blade linear, base tapered to clasping, apex acuminate.

(3–)6–28 cm, verticillasters (3–)6–12, cymes 2–5-flowered;

proximal bracts lanceolate to linear, 6–36 × 1–6 mm;

peduncles and pedicels glandular-pubescent.

interrupted, secund, (1–)3–15 cm, axis retrorsely hairy to puberulent, or glabrous, verticillasters 1–7, cymes 1–3-flowered, 1(or 2) per node;

proximal bracts linear, 3–14 × 0.3–1 mm;

peduncles and pedicels ascending to erect, glandular-pubescent, sometimes puberulent.

calyx lobes ovate to lanceolate, 4–6 × 1.7–2.1 mm;

corolla orangish red to scarlet, throat usually yellowish or orangish, unlined internally, 22–33 mm, sparsely white-puberulent, tube 3–5 mm, throat 4–6 mm diam.;

pollen sacs 1.8–2.3(–2.5) mm;

staminode 14–16 mm;

style 18–26 mm, exserted.

calyx lobes lanceolate, 5–7 × 1.5–2 mm, scarious-margined, glandular-pubescent, hairs pointed;

corolla scarlet, throat sometimes yellow or yellow- or orange-spotted, unlined internally, salverform, 25–32 mm, yellow-lanate internally abaxially, tube 4–6 mm, throat slightly inflated, 4–5 mm diam., slightly 2-ridged abaxially;

stamens exserted (often hidden by galeate adaxial lobes), filaments glabrous, pollen sacs opposite, explanate, 0.8–1 mm, sutures smooth;

staminode 12–17 mm, included, slightly flattened distally, 0.1–0.2 mm diam., tip straight, distal 9–10 mm densely pilose, hairs yellow, to 1.3 mm;

style 21–27 mm.

7–10 × 4–5 mm.

5–9 × 3–4 mm.

= 16.

= 16.