Abstract: Nelumbo‘Yilian Youmeng’is a pink,single-petaled,large and long-flowering cultivar and was selected from artificially hybridized offspring. Its maternal parent is red lotus‘Hong Bo’（Asian-American hybrid）and paternal parent is‘Vietnamese Seed Lotus’. Its most distinctive feature is the significant change in colored,from red（RHS 58B）early to a lighter shade（RHS 65B）later,creating a appearance with yellow-white interiors and red petal tips. When grown in medium to large pots（with a diameter of 460 cm and a depth of 290 cm）,the standing leaves reach a height of 60-150 cm,while the flowers stand at 100-160 cm,significantly taller than the leaves. The flowering period is long,beginning in mid June in the Yangtze River region and continuing naturally to mid-to-late October,with a high density of blooms（10 or more flowers per pot）. The fruit is elliptical with a high seed-setting rate. The rhizome slightly expands. It is suitable for most areas in the middle and lower reaches of theYangtze River and south of it in China.

Key words: lotus, flowering regulation, cultivar