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Perennial forming annual prostrate or some­times twining stems from a woody taproot. Stems terete, herbaceous but firm, densely cov­ered (as are all vegetative parts and outer sep­als) with a fulvous or silvery white pubescence, up to ± 2 m long. Leaves variable in shape, often on the same plant, but generally oblong to lanceolate-oblong, varying to linear-hastate or ovate, usually hastate at base with basal auricles lobed or dissected and central lobe irregularly crenate-repand-pinnatilobed, not infrequently with 2 small oblong lateral lobes at base and leaf subpalmately 5-7-lobed, sometimes pinna-tisect, 30-60 mm x 5-35 mm; pubescence usu­ally strigose on upper surface, less adpressed on lower one; apex usually obtuse to rounded, emarginate and minutely reflexed-mucronate, rarely acute; main nerves and midrib impressed above, prominent below; petiole usually rather stout, terete, 5-20 mm long. Peduncles usually longer than petioles, slender, terete, subumbel-lately to cymosely 1-6-flowered; bracteoles lin­ear or oblanceolate, 3-A mm long; pedicels sho