"'Yae-beni-shidare’ is a double-flowered form of the ito-zakura (Japanese thread cherry) (Prunus subhirtella var. pendula), with flowers in March or April that resemble, as they open, tiny, pendulous pink roses. The habit of this tree is umbrella-like and is easily recognized by the long lasting, soft pink, inflated blooms and small stature. The usual height and spread is about 5 m × 5 m (16 ft). Also known as Prunus subhirtella ‘Pleno-rosea’. "

Source: Cherry Cultivars