Plants (7-)10-40 cm; scape glabrous, usually glandular-puberulent apically. Caudices not obvious at anthesis; roots tannish; bulblets absent. Leaves (1-)3-18(-20) × 0.5-4(-5) cm; petiole usually slender; blade oblanceolate to spatulate, base usually not decurrent onto stem, narrowing abruptly to petiole, margins usually entire, rarely finely denticulate, surfaces usually glabrous, sometimes with sessile glands. Inflorescences (1-)5-18-flowered; bracts usually narrowly lanceolate to lanceolate, rarely oblanceolate, 3-22 mm, usually glandular, sometimes glabrous. Pedicels 2-5 cm, sparsely to moderately glandular-puberulent. Flowers: calyx light greenish, 5.5-8.5 mm, glandular-pubescent abaxially, tube 1.5-2.5 mm, lobes 5, 3-6 mm; corolla tube yellow with dark maroon, thick, often wavy ring, lobes 5, magenta or white, 6-25(-30) mm; filaments connate, tube yellow or dark maroon to black, 2.5-4 × 3-4 mm; anthers 3-5 mm; pollen sacs yellow or dark purple, connective yellow or maroon to black, transversely rugose; stigma not enlarged compared to style. Capsules yellowish or reddish tan, often suffused with purple, valvate or operculate, cylindric-ovoid, 8-16 × 4-7 mm, glabrous or glandular-puberulent; walls thin, pliable. Seeds without membrane along edges. 2n = 44, 66, 88.