Edit Plant: Acer truncatum

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'''''Acer truncatum''''' ('''Shantung Maple''', '''Shandong Maple''', or '''Purpleblow Maple''') is a [[maple]] native to northern [[China]] and [[Korea]].<ref name=focd>Flora of China (draft): [http://flora.huh.harvard.edu/china/mss/volume11/Aceraceae-AGH_finishing.htm ''Acer truncatum'']</ref> It is a medium-sized [[deciduous]] [[tree]] growing to 15 m tall with a broad, rounded crown. The [[bark]] is smooth on young trees, becoming shallowly ridged with age. The [[leaf|leaves]] are opposite, [[leaf shape|palmate]]ly lobed with five lobes, 5-12 cm long and 7-11 cm broad, with a 3-10 cm petiole; the lobes are usually entire, but occasionally with a pair of teeth on the largest central lobe, and the margin is often wavy. The petiole bleeds a milky [[latex]] when broken. The [[flower]]s are in [[corymb]]s, yellow-green with five petals 5-7 mm long; flowering occurs in early spring. The [[fruit]] is a double [[Samara (fruit)|samara]] with two winged [[seed]]s, the seeds are disc-shaped, slightly flattened, 13-18 mm across. The wings are 2 cm long, widely spread, approaching a 180° angle. The bark is greenish-grey, smooth in young trees, becoming shallowly grooved in mature.<ref name=focd/><ref name=rhs/><ref name=rushforth/> It is closely related to, and often difficult to distinguish from, ''[[Acer amplum]]'', ''[[Acer cappadocicum]]'', and ''[[Acer pictum subsp. mono]]'', which replace it further south and west in China, and in Japan. From ''Acer cappadocicum'' it is best distinguished by the shoots which turn brown by their first winter, not remaining green for several years.<ref name=rushforth/> From ''Acer mono'' (syn. ''A. pictum'' auct. non Thunb.) it is best distinguished by the larger, thicker (less flattened) seeds. ''Acer truncatum'' is very unusual among maples in showing [[hypogeal]] germination.<ref name=focd/> Shantung Maple is grown as an [[ornamental plant]] in [[Europe]] and [[North America]].<ref name=rhs>Huxley, A., ed. (1992). ''New RHS Dictionary of Gardening''. Macmillan ISBN 0-333-47494-5.</ref><ref name=rushforth>Rushforth, K. (1999). ''Trees of Britain and Europe''. Collins ISBN 0-00-220013-9.</ref> A number of [[cultivar]]s have been selected, including 'Akikaze Nishiki' with [[variegation|variegated]] leaves, 'Fire Dragon' with very bright autumn colour.<ref name=rhs/> The cultivar 'Keithsform' (<tt>Norwegian Sunset</tt>) is a [[Hybrid (biology)|hybrid]] between ''Acer truncatum'' and ''[[Acer platanoides]]'' (Norway Maple).<ref>Oregon State University: [http://oregonstate.edu/dept/ldplants/acer-ns.htm Norwegian Sunset]</ref> {{Inc| Acer truncatum, Bunge. Tree, to 25 ft.: lvs. deeply 5-lobed and mostly truncate at the base, 2 1/2-4 in. across, glabrous, light green, purplish when unfolding; lobes acuminate, setosely pointed, entire or sometimes the middle ones 3-lobed: fr. with yellow, short and broad wings, spreading at right or obtuse angles. N. China. —Hardy tree, with handsome, dense foliage.{{SCH}} }} :''More information about this species can be found on the [[Acer|genus page]].'' ==Cultivation== {{edit-cult}} ===Propagation=== {{edit-prop}} ===Pests and diseases=== {{edit-pests}} ==Cultivars== *'' ==Gallery== {{photo-sources}} <gallery> Image:Upload.png| photo 1 Image:Upload.png| photo 2 Image:Upload.png| photo 3 </gallery> ==References==    ==External links== *{{wplink}} {{stub}} __NOTOC__

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