The open plant encyclopedia
Snap a photo or search by any name to see how to care for it, where it comes from, whether it's safe, and a 3D model you can turn.
The plants people record most in your country, and ones that grow there wild.
Filter by what you want to do, shape, origin, country, care and safety.
Meristotheca papulosa is a red seaweed (alga) eaten as a sea vegetable in Taiwan and Japan, where it is called jiguancai and tosaka-nori. It is a marine species that grows on subtidal rocks, so it is not grown as a garden or houseplant.
Meristotheca papulosa (synonyms: M. japonica and Eucheuma papulosa) is a red alga, popular as a sea vegetable in Taiwan, where it is known as jiguancai (Chinese: 鸡冠菜; pinyin: jīguāncài, literally "cockscomb vegetable"), and in Japan, where it is known as tosaka-nori (Japanese: トサカノリ), which can be prefixed with aka (red) so as to distinguish it from the ao (green) and shiro (white) varieties.
It grows on subtidal rocks 5–20 metres deep, and can be seen at all times of the year.
Text excerpted from the Wikipedia article Meristotheca papulosa by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
