Niels Bohr - Biographical. Niels Henrik David Bohr was born in Copenhagen on October 7, 1885, as the son of Christian Bohr, Professor of Physiology at Copenhagen University, and his wife Ellen, nÃ©e Adler.
Opuntia is a large genus of plants native to North America and South America. All have succulent stems, some of them becoming woody with age. Stems may be cylindrical or flattened pads. Tiny, succulent leaves may be present on the newest growth (see photo below.) Most species are spiny.
Britton's Wild Petunia or Mexican Bluebell (Ruellia tweediana or Ruellia brittoniana) is highly popular as a landscape plant or shrub/hedge in Florida, especially in central and southern Florida (zones 9a through 11). It is one of the most oftenly sold commercially at nurseries plant in central and southern Florida.