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Acer shirasawanum ‘Aureum’

Golden full moon maple

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassRosidaeRoses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
OrderSapindalesIncludes citrus; maples, horse-chestnuts, lychees and rambutans; mangos and cashews; frankincense and myrrh; mahogany and neem
FamilySapindaceaeSoapberry family
GenusAcerMaples
SpeciesshirasawanumFor Japanese botanist Yasuyoshi Shirasawa (1868–1947)
Cultivar‘Aureum’‘Golden’

About plant names...

Golden full moon maple is a popular cultivar. It prefers average moisture and sunlight, well drained soil, and locations that are somewhat sheltered from winds.

Plants: Trees, or sometimes multistemmed shrubs, are deciduous, and up to 20' (6.1 m) high and 20' (6.1 m) around. These have hairless shoots, unlike the similar Acer japonicum and A. sieboldianum. Also, this cultivar has red flowers, while A. sieboldianum has yellow flowers.

Leaves: Leaves are green in the spring, turning yellow, sometimes edged with red, during the summer. In the fall, they turn bright gold, orange, or even dark red. They are shaped like most maple leaves—roughly round in overall shape, but with 9-13 sharp-tipped lobes. Leaves are opposite, 1¾-3" (4.5-8 cm) long × 2-4½" (6-12 cm) wide. Stems (petioles) are 1-2½" (3-7 cm) long.

Flowers: Reddish purple flowers appear in April, in attractive corymbs or sprays of 10-20 flowers, each about ⅜" (1 cm) in diameter.

Fruits: Red samaras are comprised of a pair of nutlets, each ⅛-⅜" (5-10 mm) around, and wings, each ¾-⅞" (2-2.5 cm) long.

Online References:

Acer shirasawanum ‘Aureum’ at the Missouri Botanical Garden

Acer shirasawanum ‘Aureum’ on www.gardenia.net

Acer shirasawanum ‘Aureum’ on Wikipedia

 

Acer shirasawanum ‘Aureum’ description by Thomas H. Kent, last updated 29 Aug 2021.

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Acer shirasawanum (golden full moon maple)

6/17/2012 · Coastal Maine Botanical Gardens, Boothbay, Maine
≈ 8 × 5" (19 × 13 cm)

Acer shirasawanum (golden full moon maple)

6/17/2012 · Coastal Maine Botanical Gardens, Boothbay, Maine
≈ 21 × 31" (52 × 78 cm)

Acer shirasawanum (golden full moon maple)

6/17/2012 · Coastal Maine Botanical Gardens, Boothbay, Maine
≈ 21 × 28" (52 × 72 cm)

Range: Zones 5-7:

About this map...