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.
Annuals and Perennials. We usually think of Petunias as annual plants. Actually, most of them are perennials. Most of us, just happen to grow them as annuals, especially up north.They are native to Argentina, Brazil, and other parts of South America. These attractive flowers caught the eye of early explorers, who collected seeds to take back to Europe and to North America. Petunias grow 12-15 inches tall. The Petunia plant and stem are covered with soft hair. Bright and colorful funnel shaped flowers begin to bloom as early as late spring. Flower blooms are produced in many single and multi colors.