Acer shirasawanum Koidzumi : Oitayameigetsu
Firstly, let me show you autumn clolors of Acer Shirasawanum.
Let's compare their autumn colors between shirasawanum & tenuifolium.


Young leaves of Acer shirasawanum with no hairs




Flowers at my garden on May 02, 2005
Comparison of flowers between shirasawanum & tenuifolium

Upper : Shirasawanum having upright flowers, Lower : tenuifolium carrying flowers


Leaves & samaras

Turning brownish yellow at the foot of Mt.Yakusidake, Oct. 25,1998

Turning brownish yellow at the Abe pass, Nov. 07,2007

Turning brownish red at the Abe pass with Mt. Fuji, Nov. 07,2007
Recent images are added as follows.

Orange colors at Nagano Pref. side of Chausu-yama Highlands

Turning brownish yellow at the Shirabiso Highlands Nagano Pref.
Comparison of young leaves of "Fan-like leaf maples"

Upper L : Acer japonicum, Upper R : Acer sieboldianum
Lower L : Acer shirasawanum, Lower R : Acer tenuifolium
(Conspicuous soft hairs of japonicum & sieboldianum)

Flowers & new leaves at Chausu-yama Highlands on May 14, 2012

Flowers & new fruits near Yamazumi shrine Misakubo-cho Hamamatsu on May 24, 2012