Robuta

https://species.wikimedia.org/wiki/Alpinia_galanga?uselang=ja Alpinia galanga - Wikispecies alpinia galanga wikispecies https://ojs.uph.edu/index.php/FaSTJST/article/view/10387/5376 View of Optimization of Galangal Essential Oil Stik Balsam Formula (Alpinia galanga (L.) Willd.)