Paphiopedilum concolor subsp. chlorophyllum Paphiopedilum concolor var. dahuaense Paphiopedilum concolor var. immaculatum Paphiopedilum concolor subsp. reynieri Paphiopedilum concolor f. sulphurinum Cypripedium concolor var. chlorophyllum Cypripedium concolor var. reynieri Cypripedium concolor var. sulphurinum Cypripedium concolor var. tonkinense Paphiopedilum concolor var. tonkinense Cypripedium tonkinense Paphiopedilum concolor var. chlorophyllum Paphiopedilum concolor var. reynieri Paphiopedilum concolor var. sulphurinum Paphiopedilum concolor f. dahuaense
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024