Flora of North America species comparison

erect to slightly spreading, 2–10 cm, strigose to sericeous.

suffrutescent basally, erect, 50–150 cm, glabrous.

unifoliolate;

stipules absent;

blade oblong, elliptic to ovate, or suborbiculate, (5–)8–19 mm, length 1.3–3.5 times width, surfaces loosely strigose-sericeous.

unifoliolate;

stipules ovate to ovate-lanceolate, not decurrent on stem, 4–7 mm;

blade obovate to elliptic, 50–150 mm, length 1.5–2.5 times width, surfaces glaucous, strigose abaxially, glabrous-punctate adaxially.

(1 or)2–8-flowered, terminal, subterminal, or lateral, 2–6 cm;

bracts persistent, linear-triangular.

12–22-flowered, terminal, subterminal, or lateral, 10–50 cm;

bracts persistent, cordate-auriculate, 5–8 mm.

calyx cylindrical, 7–8 mm, lobes triangular-lanceolate, loosely strigose;

corolla bright yellow, 8–9 mm.

calyx broadly cylindrical, 10–15 mm, lobes triangular-lanceolate, glabrous;

corolla bright yellow, faintly red-lined, 17–25 mm.

14–25 × 6–8 mm, glabrous or sparsely strigose on abaxial suture.

30–45 × 10–20 mm, glabrous.

= 16.