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General DescriptionShrubs 0.2-1.8 m tall, glabrous throughout. Roots tuberous. Turions present. Stems brown-gray. Proximal leaves 2-ternate; leaflets always segmented, base usually decurrent; segments again segmented or lobed; ultimate segments and lobes 25-200, linear or linear-lanceolate, 0.5-10 cm long, 0.2-2.7 cm wide, margin entire or occasionally dentate. Flowers 1-3 per shoot, both terminal and axillary, basipetal, ± pendulous, single, 6-10 cm wide. Bracts 1-5, varying in shape and size. Sepals 2-9, green abaxially, green with a pink base adaxially, or wholly purple or purple-red, triangular-orbicular or orbicular, 1.3-3.7 cm long, 0.6-2.3 cm wide, apex rounded to mucronate or acuminate. Petals 7-11, yellow, yellow with a red or purple-red spot at base, red, dark red, or dark purple-red, sometimes white, green-yellow, yellow with a red margin, or orange. Filaments yellow, pink-red, or dark purple-red; anthers yellow, pink, red, or dark purple-red. Disc yellow, red, or dark red, annular or shortly cylindric. Carpels 2-5; ovary usually green, sometimes purple. Stigmas green-yellow, yellow, red, or purple-red. Follicles brown at maturity, oblong-ovoid, 2-3.5 × 1-1.5 cm. Seeds brown-black.