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Looks like teak ( Tectona grandis ).
Prunus tomentosa
The photos match the description for Enkianthus sikokianus (syn. E. campanulatus var. sikokianus) =>...
#4 Lonicera japonica #5 Jasminum polyanthum #1 (Saltcedar and KarinL are right.)
Xylosma japonicum, X. congestum, X. racemosum, X. senticosum (family: Salicaceae, formerly Flacourtiaceae) Several botanical names are applied to...
Not E. europaeus. The fruits in question are five-valved, not four. More likely to be Euonymus oxyphyllus....
As my answer, I attach a picture of a young tree taken in a wild forest of Japan. Young individuals of this species look a bit different from...
Malus toringo? http://www.s-weeds.net/familjer/rosales/rosaceae/toringo.html
I was and am certain that you didn't see it, tipularia.
"Too easy", Eric. (but not in the sense you meant.) The moment I placed the mouse pointer over the thumbnail to enlarge, my browser popped up the...
Hi everyone. I attach a photo of Stewartia serrata I took today near the peak of Mt. Hikosan (1200m) where I believe its type specimen was...
I added some words to my photo above. Please take a look. Thanks.
What is the length of the leaves, JPierre? How about S. rostrata, which has leaves about 15 cm long, twice the length of those of three species...
Most likely Stewartia serrata. Also looks like S. monadelpha, but it isn't. S. monadelpha has buds with several imbricate scales . I see only...
I agree with TonyR! I believe avocado trees are not self-pollinating. I'm not sure that's why you found no fruits.
hello, tipularia looks like a Chamaesyce, most likely C. maculata. widely distributed in Japan since being introduced from North America in 1887.
#5 looks like "Leopard Plant", a cultivar of Ligularia. a link here: http://www.mooseyscountrygarden.com/foliage-plants/ligularia.html
Oh, I didn't notice young/green inflorescences in the first picture until now. A close-up of them (blooming, preferably) would give a good clue...
could be a Cordia species. 24 species in Cordia listed here: http://plants.usda.gov/java/profile?symbol=CORDI some pictures:...
Looks like Rhus chinensis. Very common here in Japan. http://www.uark.edu/campus-resources/cotinus/plants3_html/rhch1.html U-shaped leaf scar...
