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Acer palmatum Thunb.

Japanese maple

Japanese maples are in fact Japanese in origin, also occurring naturally in Korea, China, and parts of Mongolia and Russia as well. The low, mounded shape of the tree, along with its attractive color varieties and leaf varieties, have made it enormously popular throughout the world. Numerous cultivars are available.

Plants: These small trees rarely exceed 20–33′ (6–10 m) in height or width. They may have multiple trunks. They often have a rounded habit.

Leaves: Foliage may be purple or green. Leaves are palmate, with 5-9 lobes, and are 1½–4½″ (4–12 cm) around, with doubly serrated margins.

Flowers: Small cymes, with five red or purple sepals and five whitish petals.

Fruits: Samaras are in winged pairs. Each samara is ¾–1″ (2–3 cm) in size.

Acer palmatum (Japanese maple)

From left to right A. palmatum wild type, A. palmatum ‘Amoenum,’ and A. palmatum ‘Matsumurae’ (’Dissectum’ is similar to ‘Matsumurae’). By Abrahami.

Online References:

Plants for a Future (Acer palmatum)

Wikipedia

North Carolina Extension Gardener Plant Toolbox (Acer palmatum)

The Ohio State University PLANTFacts database

Acer palmatum var. palmatum
Acer palmatum var. heptalobum Rehder
Acer palmatum var. linearilobum Miq.
Acer palmatum var. latilobatum Koidz.
Acer palmatum var. dissectum (Thunb.) Miq.
Acer palmatum subsp. amoenum (Carrière) H.Hara
Acer palmatum var. amoenum (Carrière) Ohwi
Acer palmatum var. crispum André
Acer palmatum var. coreanum Nakai
Acer palmatum var. subtrilobum K.Koch
Acer palmatum var. sessilifolium (Siebold & Zucc.) Maxim.
Acer palmatum var. spontaneum Koidz.
Acer palmatum var. ornatum (Carrière) André
Acer palmatum var. multifidum K.Koch
Acer palmatum subsp. matsumurae Koidz.
Acer palmatum var. matsumurae (Koidz.) Makino
Acer palmatum var. pubescens H.L.Li
Acer palmatum var. palmatilobum Koidz.
Acer palmatum subsp. pubescens (H.L.Li) A.E.Murray
Acer palmatum var. palmatipartitum Koidz.

 

Acer palmatum (Japanese maple)

6/18/2011 · Sue and Rai’s, Phoenix, Mary­land

Acer palmatum (Japanese maple)

7/23/2005 · MacDonalds, Westford, Mass­a­chu­setts ID is uncertain

Acer palmatum (Japanese maple)

8/12/2007 · Ellen’s Landscaping, Westford, Mass­a­chu­setts ID is uncertain

Acer palmatum (Japanese maple)

6/18/2011 · Sue and Rai’s, Phoenix, Mary­land

Acer palmatum (Japanese maple)

7/8/1998 · Westford, Mass­a­chu­setts

Acer palmatum (Japanese maple)

10/31/2024 · Dr. Hoffert's Land, Selkirk, New York

Acer palmatum (Japanese maple)

6/18/2011 · Sue and Rai’s, Phoenix, Mary­land

Acer palmatum (Japanese maple)

6/26/2005 · Falmouth, Maine ID is uncertain

Acer palmatum (Japanese maple)

5/11/2021 · Harpswell Historic Park, Harpswell Garden Club, Harpswell, Maine · ≈ 6 × 4″ (16 × 11 cm)

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn's Botanical Latin)
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
SpeciespalmatumHand-shaped or “palmate,” as with the fronds of a palm

About plant names...

Range: Zones 5-8:

About this map...

Acer palmatum description by Thomas H. Kent, not updated.

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