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Acer sieboldianum 'Kasatori Yama'
ht: 15-25 ft. - shorter than species typical
ls: 9-11 lobes, sometimes 13, lobes more widely angled than most cultivars (less overlap)
lc: light green, petioles often red tinged
afc: yellow, orange, and red shades, often very showy

Acer sieboldianum 'Kinugasa Yama'
ht: 15-20 ft.
ha: globose in time, highly branched compared to some other clones
ls: 7-9 lobed
ll: 5-10cm
lc: light to medium green, often silky hairy below as new leaves, more bluish-green than others
pet: often highly tomentose when young
afc: yellow to orange to red shades, often quite showy
ns: the name means "silk umbrella" owing to the shape and the fine hairs

Acer sieboldianum 'Mikasa Nishiki'
lc: whitish or pale green based with darker green reticulations, a subtle variegate

Acer sieboldianum 'Mikasa Yama'
ls: 7-9 lobes, suborbicular outline
lc: light green with yellowe margins at first, often pubescent over the entire surface
ll: 4-7cm - slightly smaller than 'Kinugasa Yama'
lm: less coarse teeth than 'Kinugasa Yama'
afc: yellow with some red tints

Acer sieboldianum 'Mi Yama Nishiki'
ht: 25-35 ft. - larger than most cultivars
bk, tw: often reddish-brown, semi-showy
ls: 5-7 lobed
lc: light green, often tomentose below at first
afc: yellow

Acer sieboldianum 'Momiji Gasa'
ls: 9-lobed, rather deeply ncised
lm: strongly serrate
ll: 5-7cm long
lc: very light green, often silvery to white when young due to hairs
afc: yellow to red shades
ns: it may be a hybrid to A. palmatum or A. japonicum where it is sometimes listed.

Acer sieboldianum 'Ogura Yama'
ht: 20-30 ft.
st: more tomentose than species typical
ls: 5-7 lobed
lc: light green

Acer sieboldianum 'Osiris'
ht: 25-30 ft.
ls: 9-lobed
lc: darker green than species typical, often whitish pubescent below
afc: yellow
or: Von Gimborn Arboretum, Netherlands

Acer sieboldianum 'Sayo Ginu'
ll: smaller than species typical
afc: rich red shades, it's real claim to fame

Acer sieboldianum 'Sode-no-uchi'
ht: 10-15 ft. - shorter than species and perhaps the smallest clone
ha: denser than most clones, subglobose with age
ls: 9-lobed
ll: 2-4cm long - much smaller than other clones
lc: light green, often margined purple shades
afc: yellow with red tints
eval: one of the smaller cultivars, suitable for smaller gardens and bonsai

Acer sieboldianum 'Tortuosum'
ha: branches twisted