Biennial or perennial, (15-) 30-45 cm tall, often robust,c.2 cm thick below, pubescent pale yellowish-brown; scales 12-15 (-25) mm long, lanceolate. Spikes 10-20 (-25) cm long, dense. Bracts ± as long as or exceeding the flowers, narrow, lanceolate; bracteoles absent. Calyx half as long as the corolla, 2-segmented, each segment 2-fid to the middle with lanceolate teeth. Corolla usually 14-18 mm long, yellow, puberulous, curved with crenulate lobes. Stamens inserted down below the corolla tube; filaments and anthers glabrous. Stigma 2-lobed. Capsule 5-6 (-7) mm long, oblong-ovoid.