Flora of North America species comparison

ascending to erect, usually much-branched from base, 5–10 cm, glabrous.

decumbent to ascending or erect, simple or few- to much-branched, 10–40 cm, glabrous proximally, glandular-pubescent distally.

blade linear-lanceolate, 5–15 × 1–5 mm, margins entire or with 1 or 2 pairs of teeth distally, apex obtuse, surfaces glabrous.

blade oblanceolate to narrowly obovate or oval, 20–45 × 4–18 mm, margins with 1–6 pairs of teeth distally, apex obtuse to acute, surfaces glabrous.

slender, 4–10 mm, length 1–2.3 times bract, glabrous;

bracteoles 1, 1.5–4 mm.

slender, 20–45(–55) mm, length 0.8–2 times bract, glabrate or finely glandular-pubescent;

bracteoles 2, 3–6 mm.

sepals distinct, linear to linear-lanceolate, 3–6 mm;

corolla 9–12 mm, tube yellow to orangish yellow, veins yellow to greenish yellow or brownish yellow, limb yellow;

style 3–5 mm.

sepals distinct, linear to narrowly lanceolate or narrowly oblong, 3–6 mm;

corolla 14–25 mm, tube yellowish green, veins reddish purple to brownish yellow, limb white;

style 5–7 mm.

ovoid, 2–2.5 × 1.5–2 mm.

ovoid, 3–6 × 2.8–3.2 mm.

0.3–0.4 mm.

0.6–0.8 mm.