noun
Chinese redbud
A deciduous shrub or small tree with pink to reddish-purple flowers in spring. The name is often written in katakana.
庭にハナズオウを植えた。
I planted a Chinese redbud in the garden.
春になるとハナズオウの花が咲く。
In spring, the Chinese redbud blooms.
スオウ (蘇芳) refers to the sappanwood tree (Caesalpinia sappan) or its red dye, while ハナズオウ is a different plant (Cercis chinensis) with similar flower color.
The name likely combines 花 (hana, 'flower') with 蘇芳 (suō, 'sappanwood red'), referring to the flower's color. The exact derivation is uncertain.