What genus honors John Parkinson, Parkinsonia or Rumohra?
Parkinsonia Parkinsonia , also Cercidium , is a genus of flowering plants in the pea family, Fabaceae. It contains about 12 species that are native to semi-desert regions of Africa and the Americas. The name of the genus honors English apothecary and botanist John Parkinson (1567–1650).
Rumex hydrolapathum Rumex hydrolapathum Huds. (great water dock; water dock; giant water dock) is a species of perennial herbaceous plants in the genus "Rumex" native to fens and freshwater banks of Europe and Western Asia. It is the tallest species in the genus, with flowering stems attaining a height of up to 2 m . It is one of the small number of decaploid organisms, containing two hundred individual chromosomes.