Annona Sutenofira/Stenophylla?

[akanonui]

Has anyone heard of this plant? Annona Stenophylla or the semi-vinning annona? It's from Southern Africa, also called dwarf custard apple and sold for over 400 usd on this website...http://www.gmo-toku.jp/item/75864890/%5B%E8%B6%85%E5%B8%8C%E5%B0%91%E3%83%90%E3%83%B3%E3%83%AC%E3%82%A4%E3%82%B7%E7%A7%91%E7%86%B1%E5%B8%AF%E6%9E%9C%E6%A8%B9%E3%83%BB%E3%83%89%E3%83%AF%E3%83%BC%E3%83%95%E3%82%AB%E3%82%B9%E3%82%BF%E3%83%BC%E3%83%89%E3%82%A2%E3%83%83%E3%83%97%E3%83%AB%5D%E3%82%A2%E3%83%B3%E3%83%8E%E3%83%8A%E3%83%BB%E3%82%B9%E3%83%86%E3%83%8E%E3%83%95%E3%82%A3%E3%83%A9%28Annona+stenophylla%29%E8%8B%97/  Here are some pics Is this the same thing as A. Senegalensis? They claim it's two different plants and I've found some other info on it. Has anyone grown or seen this plant? *Neither the pictures nor plants belong to me, just using them for educational/asking purposes.