Lower sepal navicular, ca. 6 mm deep, narrowed into an incurved or involute spur ca. 1.5 cm, tip rounded, mucronulate.是什么意思_Lower sepal navicular, ca. 6 mm deep, narrowed into an incurved or involute spur ca. 1.5 cm, tip rounded, mucronulate.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句