Rosa centifo'lia, Pale Rose. -- The petals, collected after expanding, U.S.P. 1820-1890; W. Asia. Plant erect, 1-2 M. (3-6 degrees) high, similar to but larger than Rosa gallica; stems covered with prickles, larger ones hooked; leaves imparipinnate, 2 pairs of opposite leaflets; flowers large, double, calyx persistent; fruit (hip) scarlet to orange-red, oblong, containing many 1-seeded achenes. Petals numerous, roundish-obovate, retuse, or obcordate, pink, fragrant, sweetish, slightly bitter, faintly astringent; contain volatile oil, mucilage, sugar, tannin, malates, phosphates (quercitrin?). This, although often mistaken for the Damask rose, is no doubt the most anciently cultivated variety of R. gallica, and exists in many hybrid forms which are employed indiscriminately. Used as mild carminative, for distilling the oil and U.S.P. stronger rose water -- the latter being of fine flavor, and more used in this country, owing to prevalence and cheapness, than the imported. Dose, gr. 15-60 (1-4 Gm.). R. cani'na, Dog Rose, United States; leaflets 5-7, ovate, serrate, flowers pink, white; R. blan'da, R. nit'i-da, also employed.