"Stout, glaucous perennial, branched above, 4–12 dm, colonial by creeping roots; lvs numerous, ovate or lance-ovate, sessile and clasping, palmately veined, 2–5 × 1–2+ cm; fls short-pedicellate or subsessile in elongate racemes, bright yellow, with well developed, orange-bearded palate, 2.5–4 cm, the spur about as long as the rest of the cor; fr broadly ovoid-cylindric, 6–8 mm; seeds irregularly wing-angled; 2n=12. Roadsides and other disturbed sites; e. Mediterranean sp., now well established in arid w. U.S., and occasional with us. July, Aug."
Perennial herb, 0.2-0.9 m high. Stems erect, branched, glabrous. Leaves opposite below, becoming alternate towards apex; sessile, clasping at base, suberect, rigid; blade ovate to lanceolate, up to 25-45 x 15-40 mm, 2-4x as long as wide, apex acute, base truncate, margins entire. Flowers: in terminal racemes, up to 0.2 m long; bracts and petioles ± equal in length; spur straight, up to 20-50 mm long, acute, corolla tube 20-50 mm long, 6-12 mm wide at mouth; corolla yellow, palate usually orange, bearded; Nov. Seeds not winged.