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A protoxin present in the seeds of Acer negundo, hypoglycin A, has been identified as a major risk factor for, and possibly the cause of, a disease in horses, seasonal pasture myopathy (SPM). SPM is an equine neurological disease which occurs seasonally in certain areas of North America and Europe, with symptoms including stiffness, difficulty ...
Acer sempervirens, the Cretan maple, is a species of maple native to southern Greece and southern Turkey. [2] [3] [4] Cretan maple (Asfendamos), Dikti Mountains, Crete. Acer sempervirens is an evergreen or semi-evergreen shrub or small tree, one of the very few evergreen species in the genus. It grows to 10 metres (33 ft) tall with a trunk up ...
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 ...
The leaves are used as a food plant for the larvae of a number of the order Lepidoptera (see List of Lepidoptera that feed on maples). In high concentrations, caterpillars, like the greenstriped mapleworm ( Dryocampa rubicunda ), can feed on the leaves so much that they cause temporary defoliation of host maple trees. [ 14 ]
It is a small to medium-sized deciduous tree reaching a height of 5–20 m with a trunk up to 50 cm diameter. The leaves are in opposite pairs, 2.5–8 cm long (excluding the 2–5 cm petiole) and 3.5–6.5 cm broad, hard, glossy dark green above, paler below, usually with three lobes; on mature trees the lobes forward-pointing and with smooth margins, on young trees with more spreading lobes ...
Amur maple is treated either as a subspecies of Acer tataricum (Tatar maple), [3] or as a distinct species in its own right, Acer ginnala. [2] [4] [5] The glossy, deeply lobed leaves of subsp. ginnala distinguish it from subsp. tataricum, which has matt, unlobed or only shallowly lobed leaves; it is separated from subsp. tataricum by a roughly 3,000 km range gap across central Asia.
Usually monoecious, the flowers are produced in spring at the same time as the leaves open, yellow-green, in erect clusters 4–6 cm (1.6–2.4 in) across, and are insect-pollinated. The fruit is a samara with two winged achenes aligned at 180°, each achene is 8–10 mm (0.31–0.39 in) wide, flat, with a 2 cm (0.79 in) wing.
The flowers are whitish-green, 5–8 millimetres (0.20–0.31 in) diameter, produced in spreading panicles in spring as the leaves open. The fruit is a paired reddish samara , 10–12 millimetres (0.39–0.47 in) long with a 2–3 centimetres (0.79–1.18 in) wing, maturing in late summer to early autumn.
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