Which genus of plant had more species identified with it in the past, Carissa or Aruncus?
Aruncus Aruncus is a genus of clump forming herbaceous perennial plants in the family Rosaceae. Botanical opinion of the number of species differs, with from one to four species accepted. They are closely related to the genera "Filipendula" and "Spiraea", and are native to mountainous damp woodland in temperate regions of the Northern Hemisphere. Creamy white plumes of flowers are produced above veined and toothed leaflets.
Asarina Asarina is a flowering plant genus of only one species, Asarina procumbens, the trailing snapdragon, which is native to southern Europe. Originally placed in the Scrophulariaceae (figwort family), the genus has more recently been moved to the Plantaginaceae (plantain family). Species from North America formerly placed in the genus "Asarina" are now placed in "Holmgrenanthe", "Lophospermum", "Mabrya" and "Maurandya", as well as "Neogaerrhinum". "Asarina" is now regarded as exclusively an Old World genus.