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{{SPlantbox
{{SPlantbox
|genus=Buxus
|familia=Buxaceae
|genus=Buxus
|species=microphylla
|species=microphylla
|taxo_author=Siebold & Zucc.
|common_name=Japanese Box, Littleleaf Box
|habit=shrub
|Min ht box=2
|Min ht metric=m
|Max ht box=3
|Max ht metric=m
|origin=Japan, Taiwan
|lifespan=perennial
|Temp Metric=°F
|Temp Metric=°F
|jumpin=If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
|jumpin=If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
|image=Upload.png
|image=Buxus_microphylla_HabitusLeaves_BotGardBln0906.JPG
|image_width=240
|image_width=180
}}
}}
'''''Buxus microphylla''''' ('''Japanese Box''' or '''Littleleaf Box''') is a species of ''[[Buxus]]'' native to [[Japan]] and [[Taiwan]].<ref name=grin>Germplasm Resources Information Network: [http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?8207 ''Buxus microphylla'']</ref>
It is an [[evergreen]] [[shrub]] or small [[tree]] growing to 2–3 m tall. The [[leaf|leaves]] are bright green, 10–25 mm long, oval with a rounded or notched tip.<ref name=rhs>Huxley, A., ed. (1992). ''New RHS Dictionary of Gardening''. Macmillan ISBN 0-333-47494-5.</ref><ref name=bean1>Bean, W. J. (1976). ''Trees and Shrubs Hardy in the British Isles'' 8th ed., vol. 1. John Murray ISBN 0-7195-1790-7.</ref>
The species was first described from cultivated plants of in Japan of unknown origin; these are dwarf shrubs only growing to 1 m tall, with small leaves less than 18 mm long. Wild box plants in Japan differ somewhat, growing to 2–3 m tall with leaves up to 25 mm long; they are sometimes distinguished as ''Buxus microphylla'' var. ''japonica'' (Muell.-Arg.) Rehder & Wilson (syn. ''B. japonica'' Muell.-Arg.).<ref name=grin/><ref name=bean1/>
Plants from Taiwan are distinguished as ''Buxus microphylla'' var. ''tarokoensis'' S.Y.Lu & Y.P.Yang.<ref name=grin1>Germplasm Resources Information Network: [http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?448512 ''Buxus microphylla'' var. ''tarokoensis'']</ref>
Plants from [[China]] and [[Korea]] formerly often cited as ''Buxus microphylla'' var. ''sinica'' are now treated as a distinct species ''[[Buxus sinica]]''.<ref name=grin2>Germplasm Resources Information Network: [http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?8210 ''Buxus microphylla'' var. ''sinica'']</ref>
The species is grown as an [[ornamental plant]] both in its native area and elsewhere in temperate regions of the world.<ref name=pfaf>Plants For A Future: [http://www.pfaf.org/database/plants.php?Buxus+microphylla ''Buxus microphylla'']</ref>
''Buxus microphylla'' var. ''compacta'' (Kingsville Dwarf Boxwood) and similar cultivars are commonly used for [[bonsai]].
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{{Inc|
Buxus microphylla, Sieb. & Zucc. (B. japonica var. microphylla, Muell. Arg.). Dwarf, often prostrate shrub, cjuite glabrous: Lvs. obovate or obovate-lanceolate, 1/3-l in. long: clusters mostly terminal; staminate fls. sessile, with a central gland like the former. Japan.
Buxus microphylla, Sieb. & Zucc. (B. japonica var. microphylla, Muell. Arg.). Dwarf, often prostrate shrub, cjuite glabrous: Lvs. obovate or obovate-lanceolate, 1/3-l in. long: clusters mostly terminal; staminate fls. sessile, with a central gland like the former. Japan.