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The seeds of both trees have no epigeal dormancy and will germinate immediately. Seed production begins at 11 years of age and large crops are produced most years. Like most maples, silver maple can be variably dioecious (separate male or female trees) or monoecious (male and female flowers on the same tree) but dioecious trees are far more common.
Most maples or acers are trees growing to a height of 10–45 m (33–148 ft). Others are shrubs less than 10 meters tall with a number of small trunks originating at about ground level. Most species are deciduous , and many are renowned for their autumn leaf colours , but a few in southern Asia and the Mediterranean region are mostly evergreen .
Acer saccharum is among the most shade tolerant of large deciduous trees. Its shade tolerance is exceeded only by the striped maple , a smaller tree. Like other maples, its shade tolerance is manifested in its ability to germinate and persist under a closed canopy as an understory plant, and respond with rapid growth to the increased light ...
A crop of seeds is generally produced every year with a bumper crop often occurring every second year. A single tree between 5 and 20 cm (2.0 and 7.9 in) in diameter can produce between 12,000 and 91,000 seeds in a season. A tree 30 cm (0.98 ft) in diameter was shown to produce nearly a million seeds. [8]
The fruit is a paired winged samara, each seed1–1.5 cm (3 ⁄ 8 – 5 ⁄ 8 in) in diameter with a 4–5 cm (1 + 5 ⁄ 8 –2 in) wing. [11] [9] [8] Bigleaf maple begins bearing seed at about ten years of age. [10] In May 2018 the oldest two Oregon maples in Europe, 175 years old, were removed from Trinity College Dublin (TCD), Ireland. The ...
Fullmoon maple (Acer japonicum) Acer laevigatum seeds Japanese maple (Acer palmatum) Series Palmata. Acer amoenum (Carriere) Hara; Acer anhweiense Fang & Fang f. Acer calcaratum Gagnep. Acer campbellii Hook.f. & Thomson ex Hiern – Campbell's maple; Acer chingii Hu; Acer circinatum Pursh – vine maple; Acer confertifolium Merril & Metcalf ...
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Acer leucoderme can be grown as a shade tree or reclamation plant up through USDA plant hardiness zone 5B, far north of its natural range. The tree is highly shade- and drought-tolerant. It is recommended that seeds be gathered while still on the tree, as they do not stay viable for very long and are susceptible to insect damage. [11]