|
Alnus × Hanedae
Alders are trees comprising the genus ''Alnus'' in the birch family Betulaceae. The genus comprises about 35 species of monoecious trees and shrubs, a few reaching a large size, distributed throughout the Temperate climate, north temperate zone with a few species extending into Central America, as well as the northern and southern Andes. Description With a few exceptions, alders are deciduous, and the leaves are alternate, simple, and serration, serrated. The flowers are catkins with elongate male catkins on the same plant as shorter female catkins, often before leaves appear; they are mainly wind-pollinated, but also visited by bees to a small extent. These trees differ from the birches (''Betula'', another genus in the family) in that the female catkins are woody and do not disintegrate at maturity, opening to release the seeds in a similar manner to many conifer cones. The largest species are red alder (''A. rubra'') on the west coast of North America, and Alnus glutin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Witch Alder
''Fothergilla'' (witch alder) is a genus of two to four species of flowering plants in the family Hamamelidaceae, native to woodland and swamps of the southeastern United States. They are low-growing deciduous shrubs growing to tall with downy twigs. The brush-like flowers are produced before the leaves in spring on terminal spikes; they do not have any petals, but a conspicuous cluster of white stamens 2–3 cm long. The leaves are alternate, broad ovoid, 4–10 cm long and 3–8 cm broad, with a coarsely toothed margin; they are noted for their brilliant orange or red fall colors. Species * '' Fothergilla gardenii'' dwarf witch alder * †'' Fothergilla malloryi'' (Extinct, Ypresian, Klondike Mountain Formation) * ''Fothergilla major'' large witch alder (incl. '' Fothergilla monticola'') * '' Fothergilla milleri'' * '' Fothergilla parvifolia'' Etymology The genus was named in honor of the English physician and plant collector Dr. John Fothergill (1712-17 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
