Prunus triloba Lindl., The Gardener’s chronicle and agricultural gazette The Gardener’s chronicle and agricultural gazette; 1844 216,268 1857. (syn: Amygdalus lindleyi Carrière; Amygdalus triloba (Lindl.) Ricker; Armeniaca triloba hort.; Cerasus triloba (Lindl.) A.I.Baranov & Liou; Louiseania triloba (Lindl.) Pachom.; Persica triloba (Lindl.) Drobow);
North Korea, China (Anhui, Gansu, Hebei, Henan, Heilongjiang, Jiangsu, Jiangxi,
Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi, Zhejiang), Kazakhstan,
Kyrgyzstan, Turkmenistan, Tajikistan, Uzbekistan, USA (I) (Illinois (I),
Kentucky (I), Minnesota (I), Pennsylvania (I))
as per Catalogue of Life;

Flowering Almond, Flowering plum

Forests and thickets at elevations of 600 – 2500 metres[266].
Woodland Garden Sunny Edge;
Fruit – raw or cooked. It is possible edible[177]. The fruit is about 13mm in diameter and contains one large seed[200]. Seed – raw or cooked. Do not eat the seed if it is too bitter – see the notes above on toxicity.
E. Asia – China, N. KoreaPrunus triloba is a deciduous Shrub growing to 4 m (13ft) by 4 m (13ft).
It is hardy to zone (UK) 5. It is in flower from Mar to April, and the seeds ripen from Jun to August. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects.

(From PFAF on 11.7.15)

Flora from Warsaw-PC-03-07.07.2015-Prunus triloba : 1 post by 1 author. Attachments (3)
here is another flower shrub, though there is no flower on it as it is very small, but the label on it says so.

Rosaceae Frotnight Prunus triloba-PC-14-02.09.2015 : 1 post by 1 author. Attachments (3)
A small plant of Prunus triloba from the house, Warsaw.
It is an ornamental cherry which reaches up to 12 ft im height. 
Once it grows it gives lovely light pink multi-petal flower in spring.