flowering crab-apple

...The flowers appear in spring as new leaves unfold. The buds are red and when they bloom they are pale pink, forming an umbel of 3-7 flowers 3-4 cm in diameter. M. halliana Koehne (English name Hall's crab, flowering crab-apple) (illustration) is similar to the previous species, but it can be distinguished by its long peduncle, slightly drooping flowers, pink to white inner petals, hairless undersides of leaves, and small fruits. No wild specimens of this species are known, and it is likely a horticultural plant of hybrid origin. ...

*Some of the terminology that mentions "flowering crab-apple" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…花は春に新葉の展開とともに現れ，つぼみは紅色，開花すると淡紅色で，直径3～4cm，3～7個が散形の花序をなす。　ハナカイドウM.halliana Koehne(英名Hall’s crab∥flowering crab‐apple)（イラスト）は前種に似ているが花梗が長く，花がやや垂れぎみに咲き，花弁の内側は桃～白色で，葉裏は無毛，果実も小さいので区別される。この種も本来の野生品は知られておらず，雑種起源の園芸植物であろう。…

※「flowering crab-apple」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報