# ox knee

> English word · Noun

## Definitions
1. Cyathula officinalis, a species of Sino-Nepali amaranth-family plant.
2. A chaff flower of species Achyranthes bidentata.

## Etymology
From ox + knee, for unknown reasons.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/ox-knee