Herbs perennial, 45--100 cm tall, glabrous or pilose with intermixed sparse multicellular eglandular hairs. Roots unknown. Stems simple or branched above. Leaves sessile, ovate-lanceolate or narrowly lanceolate, 3--12 × 1--2.5 cm, glabrous, margin thickly ciliate. Dichasium rather dense, many flowered. Pedicel 3--20 mm; bracts linear-lanceolate. Flowers 2.5--3 cm in diam. Calyx narrowly funnel-shaped, 1.5--2 cm × 4--5 mm, veins prominent, teeth ca. 3 mm. Petal limb bright red, 4-lobed; lobes subulate to broadly filiform, apex acute; claw narrowly cuneate; coronal scales dark red, oblong. Stamens and styles exserted. Androgynophore ca. 5 mm. Capsule cylindric-ovoid, ca. 1 cm, equaling or slightly included in calyx. Seeds black-brown, reniform, ca. 1 mm, sharply pointed tuberculate. Fl. Jun--Jul, fr. Aug--Sep. 2n = 24.
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