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DescriptionErect or procumbent perennial herb, up to 80 cm, growing from a thick rootstock. Leaves subsessile, linear-lanceolate, up to c. 10 cm long with longish stiff hairs above and on the veins below, often with small orange glands on the undersurface; margin entire. Flowers in elongating inflorescences, eventually up to 25(-30) cm long, greenish or cream with long caudate-acuminate lobes. Fruits almost round, up to 2.5 mm in diameter, hairless, usually brown.