Flora of North America species comparison

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

sometimes ligneous basally, mostly decumbent to prostrate, 15–100 cm, minutely and sparsely strigillose.

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.

3-foliolate;

stipules caducous, narrowly triangular, setaceous, 0.5–1 mm;

leaflet blades narrowly obovate to oblong or elliptic-oblong, 7–15(–35) mm, length 1.5–3.5(–6) times width, surfaces strigose abaxially, glabrous adaxially.

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

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

(1–)4–8-flowered, terminal, subterminal, or lateral, 1–6(–10) cm;

bracts caducous, subulate.

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

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

calyx campanulate, 3–5.5 mm, lobes triangular, strigose;

corolla yellow, often red- or orange-tinged or red-lined, 7–11 mm.

30–45 × 10–20 mm, glabrous.

yellowish, 12–20 × 4–8 mm, minutely strigillose.

= 16.

= 32.