Japanese, Morrow, Tartarian, and Amur honeysuckle all have hollow stems. North American native honeysuckles, like trumpet honeysuckle (Lonicera sempervirens), on the other hand, have solid stems.

Some popular honeysuckle varieties include the Japanese honeysuckle, which has fragrant white or yellow flowers, and the trumpet honeysuckle, which has long, tubular flowers in shades of red and ...