Robuta

https://www.rhs.org.uk/plants/255100/roscoea-cautleyoides-early-yellow/details Roscoea cautleyoides 'Early Yellow' | cautleya-flowered roscoea 'Early Yellow' Herbaceous... roscoea cautleyoides early yellow cautleya flowered https://www.semanticscholar.org/topic/Cautleya-spicata/2031094 Cautleya spicata | Semantic Scholar cautleya spicata semantic scholar