Han character 萹

萹 occurs mainly in established names for plants.

萹蓄 (piān xù) names a low-growing herb traditionally used as food and medicine; 萹豆 (biǎn dòu) is an alternate name for 扁豆, a bean. In Mandarin pinyin, a way to write Mandarin sounds with Latin letters, piān is roughly “pyen” with a high, level tone; biǎn is close to “byen” with a dipping tone.

Classical Chinese plant writing preserves older names for the herb: the Erya, an early Chinese reference book, links it with 竹萹蓄; the early dictionary Shuowen Jiezi defines 萹 as 萹茿.

Why is 萹 connected to 扁?

扁 supplies the sound; 艹 marks the plant sense.

Shuowen Jiezi analyzes 萹 as 艹, the grass or plant component, plus 扁 as a sound component. That makes the connection meaningful, but 萹 does not replace 扁 in every word.

Recorded herb names include 萹竹 and 扁竹, as well as 萹蓄 and 扁蓄. 萹豆 is specifically recorded as another name for 扁豆.

What does it mean if someone sends 萹 alone?

The intended plant term is unclear without its surrounding word.

By itself, 萹 does not tell you whether the reference is 萹蓄, the herb, or 萹豆, the bean name. If it matters, ask which word they mean before settling on a reading.