Acer miyabei
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| Acer miyabei | ||||||||||||||
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| Acer miyabei Maxim. |
Acer miyabei (Miyabe's Maple; Japanese: クロビイタヤ： kurobiitaya) is a species of maple native to Japan, where it occurs in Hokkaidō and the Tōhoku region in northern Honshū.[1]
It is a small to medium-sized deciduous tree growing to 10–20 m tall, with a trunk 30–40 cm diameter with rough, grey-brown bark. The leaves are five-lobed (the basal pair of lobes usually small), 7–20 cm long and 12–20 cm broad, with a 5–15 cm long petiole; the petiole bleeds white latex if cut. The flowers are produced in spring at the same time as the leaves open, yellow-green, in erect corymbs. The fruit is a samara with two winged seeds aligned at 180º, each seed 8 mm wide, flat, with a 2 cm wing.[1][2]
It is an endangered species, confined to scattered locations close to streams and rivers.[3][1]
- Acer miyabei var. miyabei. Samaras downy.
- Acer miyabei var. shibatai (Nakai) Hara. Samaras hairless.
It is closely related to Acer miaotaiense from China (some authors treat this as a subspecies of A. miyabei, as Acer miyabei subsp. miaotaiense (P.C.Tsoong) E.Murray), and to Acer campestre from Europe.[1][2][5]
[edit] References
- ^ a b c d Rushforth, K. (1999). Trees of Britain and Europe. Collins ISBN 0-00-220013-9.
- ^ a b Les Erables: Acer miyabei (in French)
- ^ Red List of Threatened Plants of Japan
- ^ Search for kurobiitaya (in Japanese); google translation
- ^ Flora of China (draft): Acer
