Question: What characteristic does the Quince and the Isoplexis share? 

Related documents: [0]  [DOC] Isoplexis is a section of 4 species of flowering plants within the genus "Digitalis" in the plantain family Plantaginaceae. The species of section Isoplexis differ from other plants in the genus "Digitalis" in that their monosymmetric (sometimes called zygomorphic) flowers have a distinctive large upper lip rather than large lower lip and the species are endemic to the Canary Islands (the species "D. canariensis", "D. chalcantha", and "D. isabelliana") and Madeira ("D. sceptrum"). [END] 
[1]  [DOC] The quince ( ; "Cydonia oblonga") is the sole member of the genus Cydonia in the family Rosaceae (which also contains apples and pears, among other fruits). It is a small deciduous tree that bears a pome fruit, similar in appearance to a pear, and bright golden-yellow when mature. Throughout history the cooked fruit has been used as food, but the tree is also grown for its attractive pale pink blossoms and other ornamental qualities. [END]  
Answer: flowering plants
flowering plants