Flavonoids of Doniophyton patagonicum (Phil.) Hieron. (Asteraceae)

Doniophyton patagonicum (Phil.) Hieron. is a small shrub, 20–30 cm high, with axillar spines, abundant yellow capitula and a plumose pappus shorter than the corolla. It grows in the biogeographic Patagonic Province (Neuquen, Rio Negro, Chubut, Santa Cruz) reaching Mendoza, San Juan, La Pampa and Mendoza (Urtubey, 1996). This plant material was collected in Mendoza and a voucher specimen is deposited at the Herbarium Ruiz Leal (MERL 7464).