Acer palmatum, commonly called Japanese maple, is a deciduous shrub or small tree that typically grows to 10-25' (infrequently to 40') tall. It is native to Japan, Korea and China. General plant form is rounded to broad-rounded, often with low branching. Each palmate green leaf (2-5" long) has 5 or 7 but less frequently 9 pointed toothed lobes. Small reddish-purple flowers in umbels bloom in mid spring (April). The flowers are rather attractive close up, but are not particularly showy from a distance. Flowers are followed by samaras (to 3/4" long) in pairs. Samaras ripen in September-October. Fall color includes shades of yellow, red-purple and bronze. Cultivars (often grafted) are quite variable.
'Bloodgood is a non-dissected type that grows into a small, rounded, deciduous tree which typically grows to 15-20' tall and features purplish-red flowers in spring, deep reddish-purple summer foliage, red samaras in late summer to early fall and good crimson-red fall color. As with many maples, the flowers are rather attractive close up, but are not particularly showy from a distance. Palmate leaves (5-7 lobes) are 2-5" long. May also be grown as a multi-stemmed shrub.