Bell's Honeysuckle, Showy Fly Honeysuckle

(Lonicera × bella Zabel [morrowii × tatarica]) 4/19/12 Newark, DE - A bush honeysuckle and Oriental invasive. Can be white. Older flower turn yellow and when drying they look orange. This makes the plant look as though it has pink and orange flowers on it.

Natives have solid stems, invasives have hollow stems.

http://nbii-nin.ciesin.columbia.edu/ipane/icat/browse.do?specieId=69
"One way to differentiate between the invasive bush honeysuckles and the native ones is that the invasive honeysuckles all have hollow stems, while the stems of the native ones are solid."

http://plants.usda.gov/java/profile?symbol=LOBE
So invasive it's banned in some states!