Flora of North America species comparison

ascending to erect, 10–90 cm, glaucous or not.

decumbent to ascending, 8–20 cm, retrorsely hairy to pilose, hairs pointed, not glaucous.

basal and proximal cauline 31–90 × 11–20 mm, blade oblanceolate to elliptic, base tapered, margins finely to coarsely dentate, apex rounded to obtuse;

cauline 3–6 pairs, short-petiolate or sessile, (15–)30–90 × 4–30 mm, blade lanceolate to ovate-oblong, base tapered, margins coarsely dentate, distals sometimes entire, apex obtuse or acute.

basal and cauline, opposite, canescent to pilose, hairs pointed, not glaucous;

basal and proximal cauline 8–30 × 3–12 mm, blade round to spatulate or ovate, base tapered, margins entire or shallowly dentate or serrate, apex rounded to obtuse;

cauline 2–6 pairs, short-petiolate or sessile, 15–30 × 4–10 mm, blade obovate to spatulate or oblanceolate, base tapered, margins entire, apex obtuse to acute.

interrupted, cylindric, (5–)7–34 cm, axis sparsely to densely glandular-pubescent, verticillasters 4–10, cymes 2–4-flowered;

proximal bracts ovate to lanceolate, 5–50 × 2–18 mm;

peduncles and pedicels spreading to ascending, glandular-pubescent.

interrupted or continuous, cylindric, 2–8(–15) cm, axis glandular-pubescent, verticillasters 2–6, cymes 1–3-flowered, 1 or 2 per node;

proximal bracts lanceolate, (4–)9–20 × (0.5–)1.5–4 mm;

peduncles and pedicels appressed, glandular-pubescent.

calyx lobes ovate, 4.5–8.5 × (2–)2.9–3.2 mm, glandular-pubescent;

corolla white to pink or light lavender to light blue or light violet, with reddish purple nectar guides, strongly bilabiate, ventricose-ampliate, 22–35 mm, glandular-pubescent externally, glandular-pubescent internally, also white-villous abaxially, tube 5–8 mm, length 0.9–1.2 times calyx lobes, throat abruptly inflated, constricted at orifice, 10–18 mm diam., rounded abaxially;

stamens included, filaments of shorter pair glandular-puberulent proximally, pollen sacs navicular to subexplanate, 1.6–2.2 mm, sutures smooth;

staminode 20–22 mm, exserted, 0.4–0.8 mm diam., tip recurved, distal 8–10 mm densely lanate, hairs yellowish or whitish, to 4 mm;

proximal 6–8 mm densely glandular-pubescent;

style 15–18 mm, glabrous.

calyx lobes ovate to lanceolate, 5–9.5 × 1–2.2 mm, glandular-pubescent;

corolla purple to violet, blue, or purple, with purple or violet nectar guides, funnelform, 25–31 mm, glandular-pubescent externally, glabrous internally, tube 8–10 mm, throat gradually inflated, 7–9 mm diam., 2-ridged abaxially;

stamens: longer pair reaching orifice, filaments glabrous, pollen sacs parallel, 2.4–2.6 mm, distal 1/4–1/3 indehiscent, sides hirsute, hairs white, to 0.7 mm, sutures denticulate, hairs to 0.1 mm;

staminode 15–18 mm, included, 0.4–0.5 mm diam., glabrous;

style 19–23 mm.

10–14 × 5–8 mm, glabrous.

8–13 × 5–8 mm.

= 16.

= 16.