Herbs perennial, efarinose, lacking basal bud scales at anthesis. Leaves forming a rosette; petiole broadly winged, usually inconspicuous, occasionally nearly as long as leaf blade; leaf blade obovate-elliptic to narrowly elliptic or oblanceolate, (3--)5--20(--27) X 1.5--3(--4) cm, tapering at base, margin denticulate, rarely nearly entire, apex obtuse to acute. Scapes 20--45(--70) cm; umbels 1--3, superimposed, 6--10(--20)-flowered; bracts lanceolate, 3--7 mm, connate at base. Pedicel 1--3(--4) cm. Flowers heterostylous. Calyx tubular-campanulate 6--10 mm, parted to 1/3; lobes triangular, glandular ciliolate. Corolla intense crimson or pale yellow; limb ca. 1.5 cm wide; lobes strongly reflexed, narrowly oblong, 4--8 X 2.5--3 mm, margin entire. Pin flowers: corolla tube 1.1--1.3 cm; stamens 4--5 mm above base of corolla tube; style nearly as long as tube. Thrum flowers: corolla tube 1.4--1.9 cm; stamens slightly below annulus; style 3--4 mm. Capsule slightly longer than calyx. Fl. May-Jun. 2n = 22@.
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