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玫瑰秋是近年来继冬红果之后培育出的小果型观果植物海棠类群中又一优良新类型(见右下图)。它是蔷薇科苹果属楸子类群植物,乔木,树姿半开张,幼树枝条直立性强,生长旺盛,节间较短,树皮灰褐,新枝紫红密被柔毛,老枝柔毛脱落。叶片卵圆形,平伸,先端渐尖,叶基宽楔形,叶缘波状,有单纯锯齿,叶色墨绿,叶脉显现。伞形总状花序,有花4～7朵,与叶同放,花径3～4厘米,花梗长3.5～4厘米,花未开时紫红色,盛开时呈白色。果实椎形有棱,纵横径为2.8～3.2×2.8～3.5厘米,果点稀显,萼洼深广,萼片宿存,为海棠中果实较大者。玫瑰秋花序坐果率较高,一般坐果4～5个(聚果型),幼果向阳面有红晕,成熟果呈玫瑰紫色。花期4月
Rose Autumn is another fine new type of small-fruiting Begonia population that has been cultivated in recent years following the winter red fruit (see bottom right). It is the Rosaceae apple genus Catalpa flora, trees, tree posture half opened, saplings strong erect, vigorous growth, internodes shorter, bark gray brown, the new branch is purple and dense pilose, old branch pubescent Off. Leaves oval, flat, apex acuminate, leaf-based wide wedge, leaf margin wavy, a simple sawtooth, leaf color dark green, veins appear. Umbel-shaped racemes, flowers 4 to 7, with the same leaf, flower diameter of 3 to 4 cm, pedicels 3.5 to 4 cm, purple flowers when not open, was white when in full bloom. Fruit vertebral edge, vertical and horizontal diameter of 2.8 ~ 3.2 × 2.8 ~ 3.5 cm, the fruit is thin, deep calyx depression, sepals persistent, as the larger fruit of Begonia. Autumn rose inflorescence fruit setting rate is higher, the general fruit set 4 to 5 (poly fruit), young fruit sun flush, ripe fruit rose purple. Flowering in April