Didymosphenia geminata, commonly known as didymo or rock snot, is a species of diatom that produces nuisance growths in freshwater rivers and streams with consistently cold water temperatures and low nutrient levels.
Meaning from Greek Mythology. The legend and meaning of the peony goes all the way back to Greek mythology. It is believed that the peony is named for a person of healing named Paeon who was a student of Asclepius, the god of medicine and healing.
a plant, and its flower, of the ranunculaceous genus Paeonia. Of the four or five species, one is a shrub; the rest are perennial herbs with showy flowers, often double in cultivation. Origin: [OE. pione, pioine, pioni, OF. pione, F. pivoine, L. paeonia, Gr. paiwni`a, fr. Pai`wn, Paia`n, the god of healing.