Flora of North America species comparison

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

prostrate to decumbent or ascending, 10–70 cm, strigose or strigose-sericeous to hirsute-villous.

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.

unifoliolate;

stipules lanceolate-auriculate or triangular, with 2 distinct lobes, decurrent on mid and distal stems, 2–10 mm;

blade broadly elliptic, elliptic-ovate, ovate, broadly lanceolate, linear, linear-lanceolate, or obovate-oblanceolate, 9–50 mm, length 1–2.5(–12) times width, surfaces strigose to strigose-hirsute.

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

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

(1 or)2–5-flowered, terminal, subterminal, or lateral, 4–20 cm;

bracts persistent, linear-subulate to lanceolate.

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

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

calyx broadly cylindrical, 5–9 mm, lobes triangular-lanceolate, glabrous or slightly puberulous;

corolla bright yellow, banner sometimes red-lined, 7–13 mm.

30–45 × 10–20 mm, glabrous.

12–28 × 7–12 mm, glabrous.

= 16.