Flora of North America species comparison

ascending to erect, 30–120(–160) cm, glaucous.

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

glabrous, glaucous;

basal and proximal cauline 36–125 × 8–25 mm, blade spatulate to oblanceolate or elliptic, base tapered, margins entire, rarely remotely and obscurely dentate, apex rounded to obtuse or acute;

cauline 2–5 pairs, sessile, 23–130 × 5–25 mm, blade lanceolate to oblong, base clasping to auriculate-clasping, margins entire, rarely remotely and obscurely dentate, 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.

interrupted, cylindric, (4–)10–60 cm, axis glabrous, verticillasters (2–)5–16, cymes 2–7-flowered;

proximal bracts lanceolate, (8–)13–55 × 2–8 mm;

peduncles and pedicels ascending to erect, glabrous or pedicels slightly 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, 3–4.6 × 1.2–2 mm, apex acute to short-acuminate, glabrous or sparsely glandular-pubescent;

corolla rose pink to rose magenta, with reddish purple nectar guides, bilaterally symmetric, bilabiate, ventricose, 13–22 mm, glandular-pubescent externally, white-pilose and glandular-pubescent internally abaxially, tube 3–7 mm, throat gradually inflated, 5–7 mm diam., rounded abaxially;

stamens included, pollen sacs explanate, 1.1–1.4 mm, sutures smooth;

staminode 10–12 mm, flattened distally, 0.7–1(–2.5) mm diam., tip straight, distal 4–5 mm retrorsely hairy, hairs yellow or whitish, to 1 mm;

style 13–15 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.

7–9 × 4–5 mm.

(6–)8–10 × 4–5.5 mm.

= 16.