Flora of North America species comparison

erect, (6–)10–40 cm, glabrous or puberulent, not glaucous.

erect, 14–30(–45) cm, glabrous, sometimes glaucous.

basal and cauline, ± leathery or not, glabrous;

basal and proximal cauline (12–)25–115 × (4–)7–22 mm, blade oblanceolate to lanceolate or elliptic, base tapered, margins entire, apex obtuse to acute;

cauline 2–4 pairs, sessile, 18–65 × 3–16 mm, blade oblanceolate to lanceolate, sometimes ovate, base tapered to clasping, margins entire, apex obtuse to acute.

basal and cauline, opposite, glabrous, usually glaucous;

basal and proximal cauline (7–)15–50 × (4–)7–20 mm, blade ovate to deltate, base tapered to truncate, margins entire, apex rounded to obtuse;

cauline 1 or 2(or 3) pairs, short-petiolate or sessile, 12–57 × 3–20 mm, blade oblanceolate, base tapered to truncate, margins entire, apex obtuse to acute.

continuous or interrupted, cylindric, 1–12 cm, axis ± puberulent, rarely glandular-pubescent, verticillasters 1–4, cymes 2–10-flowered, 2 per node;

proximal bracts lanceolate, sometimes ovate, 12–44 × 2–13 mm, margins entire;

peduncles and pedicels erect, glabrous or ± puberulent, rarely glandular-pubescent.

interrupted, cylindric, 6–17 cm, axis glandular-pubescent, verticillasters 3–5, cymes 1–3-flowered, 2 per node;

proximal bracts oblanceolate to lanceolate, 6–28 × 1–6 mm;

peduncles and pedicels ascending, glandular-pubescent.

calyx lobes ovate to lanceolate, 5–9 × 1.8–2.7 mm, glabrous, rarely glandular-pubescent;

corolla light yellow, without nectar guides, funnelform, 12–16 mm, glabrous externally, rarely glandular-pubescent, sparsely to moderately yellow-pubescent internally abaxially, tube 5–7 mm, throat gradually inflated, 4–6 mm diam., 2-ridged abaxially;

stamens included or longer pair reaching orifice, pollen sacs opposite, navicular to subexplanate, 0.7–0.9 mm, dehiscing completely, connective splitting, sides glabrous, sutures smooth;

staminode 8–9 mm, included, 0.4–0.7 mm diam., tip straight to slightly recurved, distal 2–3 mm moderately pilose, hairs yellow or golden yellow, to 0.8 mm;

style 8–11 mm.

calyx lobes oblong to lanceolate, 3.5–5 × 1.5–2.1 mm, glandular-pubescent;

corolla light purple to lavender, violet, or blue, without nectar guides, ventricose, 17–23 mm, glandular-pubescent externally, glabrous internally, tube 4.5–6 mm, throat slightly inflated, 4.5–7 mm diam., 2-ridged abaxially;

stamens included, filaments glabrous, pollen sacs parallel, 1.1–1.3 mm, distal 1/2 indehiscent, sides glabrous, sutures denticulate, teeth to 0.1 mm;

staminode 10–13 mm, included, 0.2–0.3 mm diam., glabrous;

style 11–13 mm.

5–8 × 4–5 mm, glabrous.

(6–)8–10 × 4–5.5 mm.

= 48.