Andryala ragusina

Andryala ragusina, sometimes called silvery andryala or cana, is a perennial herbaceous plant in the family Asteraceae native to the western Mediterranean basin, occurring on the Iberian Peninsula, southern France and parts of North Africa, where it grows on dry, stony, calcareous or gravelly soils, riverbeds, road verges and disturbed slopes. The whole plant is densely covered in white woolly tomentum giving it a silvery-grey appearance. Stems are erect or ascending, 20 to 60 centimetres tall, branched in the upper part. Leaves are alternate, oblong-lanceolate to pinnatifid, 3 to 10 centimetres long, with the lower ones petiolate and the upper sessile. The yellow flower heads are 2 to 3 centimetres in diameter and arranged in loose terminal corymbs; the involucre bracts are linear, glandular and woolly, and the heads contain only ligulate (ray-like) florets typical of the Cichorieae tribe. The fruit is a small cylindrical achene with a pappus of plumose white bristles.