Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Choy sum
open-in-new
<p>Choy sum is a leafy vegetable commonly used in <a href="/facts/Chinese_cuisine/deFGefLG">Chinese cuisine</a>. It is a member of the genus <i><a href="/facts/Brassica/x0L32VGA">Brassica</a></i> of the mustard family, <a href="/facts/Brassicaceae/xMjNIBzU">Brassicaceae</a> (<i><a href="/facts/Brassica_rapa/kV8QV0Qt">Brassica rapa</a></i> var. <i>parachinensis</i> or <i><a href="/facts/Brassica_chinensis/m6RENPRV">Brassica chinensis</a></i> var. <i>parachinensis</i>). Choy sum is a transliteration of the Cantonese name (<a href="/facts/Chinese_language/771ruUY1">Chinese</a>: 菜心), which can be literally translated as "heart of the vegetable". Choy sum is also called yu choy (you cai in Standard Mandarin; Chinese: 油菜). It is also known as Chinese flowering cabbage. </p>