Grape variety	Sangiovese Grosso
Synonyms	Prugnolo Gentile, Pignolo, Tignolo, Uva tosca, Uva canina.
Grape colour	Red grape
Variety	Autochthonous
Vigour	Good
Ripening	End of September, beginning of October.
Productivity	High
Areas of cultivation	It is predominantly diffused in Montepulciano, Siena, Tuscany.
History	Probably native to the municipality of Montepulciano, in the province of Siena and already described in the eighteenth century as "red pigeon". It may come from the sanguine, but it differs for a few characters.
Ampelographic features	Leaf: medium, pentagonal, pentalobata; Flat flap with slightly tilted lobes; U open petiole breast; Upper U lateral breasts with slightly overlapping edges, slightly lower side lateral bones, slightly open; Top and bottom page with glabrous or light hair. Bunch: medium, cylindrical-pyramidal, winged, compact. Acino: medium-small, ovoid of obovoide; Pruinose, thin, consistent skin, uniformly distributed blue-black color.