Rune Bertil Nordenstam is a Swedish botanist and professor emeritus at the Swedish Museum of Natural History in the Department of Phanerogamic Botany. He has worked with Colchicaceae, Senecioneae and

Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae. The term angiosperm is derived from the Greek words ἀγγεῖον and σπέρμα, meaning that the seeds are enclosed w