found: Work cat.: 97-49613: Hobbs, C. Milk thistle, 1998:CIP t.p. (Milk thistle) p. 1 (Silybum)
found: Ind. nom. gen. (plant.)(Silybum)
found: Hortus 3(Silybum)
found: CAB thes.(Silybum)
found: Nat. list sci. plant names, 1982(Silybum (Compositae))
found: Kunkel, G. Plants for human consumption, 1984(Silybum)
found: Penso, G. Ind. plant. medicinalium, 1983(Silybum)
found: AGRICOLA, via 1stsearch, Nov. 24, 1997(titles: Silybum)
found: Biol. & agr. index, via 1stsearch, Nov. 24, 1997(titles: Silybum)
found: SPN(Silybum)
notfound: Web. 3