From either aster — star, referring to the starry appearance of the flowers, or from magisteriantia —Masterwort.
Perennial herbs with dark-coloured aromatic roots. Leaves palmately lobed or cut. Flower cluster a simple umbel, daisy-like, with large petal-like, green-veined bracts. Sterile flowers long-stalked. Fruit ovoid to oblong, prominently ridged and covered with scales.
Grown mainly as a border plant.
Seed or division.
Daisy-like flowers with large petal-like bracts.
8 species from C and S Europe and W Asia.
Source: (2002). Apiaceae. In: . Horticultural Flora of South-eastern Australia. Volume 4. Flowering plants. Dicotyledons. Part 3. The identification of garden and cultivated plants. University of New South Wales Press.