Flora of North America species comparison

ascending to erect, simple or few-branched, 2–12 cm, glabrous proximally, glabrous or glandular-puberulent distally.

ascending or erect, few- to much-branched, rarely simple, (4–)10–40 cm, glabrous or glandular-puberulent proximally, glandular-puberulent distally.

blade linear-lanceolate to oblanceolate, elliptic, or oblong, 4–8(–20) × 1.5–3.5 mm, margins entire, apex obtuse to rounded, surfaces glabrous.

blade linear to narrowly elliptic, oblanceolate, or elliptic-obovate, rarely falcate, 10–65 × 3–11(–18) mm, margins with (1 or)2–5(–7) pairs of blunt to sharp teeth, apex acute, surfaces glabrate or glandular-puberulent.

slender, 2–14(–28) mm, length 0.9–2.3 times bract, sparsely to densely glandular-puberulent;

bracteoles 0.

slender, 8–35 mm, length (0.3–)0.4–0.9(–1.3) times bract, sparsely to densely glandular-puberulent;

bracteoles 2, 2.5–7 mm.

sepals connate proximally, calyx distinctly bilaterally symmetric, lobes elliptic-oblanceolate, 3.5–6 mm;

corolla 4–7.5(–9) mm, tube yellow or greenish yellow, veins purple, limb white abaxially, greenish yellow adaxially;

style 1.5–2 mm.

sepals distinct, lanceolate to narrowly lanceolate-elliptic, 2.5–6 mm;

corolla 7–12 mm, tube yellow, yellowish white, or yellowish green, veins brownish violet, limb white, sometimes tinged lavender;

style 3–4 mm.

subglobular to ovoid, 3.5–4.7 × 3–4.5 mm.

ovoid, 2.6–6 × 3–5 mm.

0.5–0.7 mm.

0.4–0.7 mm.

= 14, 16.