Corylopsis pauciflora! (aka buttercup winterhazel)
The flowers are really more chartreuse but I still like how these came out. A great woodland shrub.
Corylopsis pauciflora--commonly called buttercup winterhazel
--native to Japan and Taiwan, introduced in 1862
--hardy in USDA Zones 6-8
--dainty 4-6' shrub with equal or larger spread
--fragrant flower inflorescences in early spring
--interesting leaf and texture in summer
--great yellow fall color in late October
--place in full sun in high pH soil with plenty of organics
--to ensure best bloom large fragile buds must be protected from wind and late winter storms
Talk about spring, right!?!?
A favorite Corylopsis of mine is already in bloom this year, a solid week or two early compared to the last couple years. Corylopsis pauciflora is commonly called a buttercup winterhazel, or just winterhazel. 
This one is on the woodland slope within the Conservatory Garden in Central Park.
for more information on this shrub, from origin to cultural care, click on the Corylopsis label below and check out the post from 2010.
