Lonicera is a member of the Caprifoliaceae and contains about 180 deciduous or sometimes evergreen species of bushy, scandent, twining or creeping shrubs, with usually peeling bark.
The leading generic characters are: leaves opposite, usually simple, entire, sometimes pinnately lobed, sessile or shortly petioled, sometimes with connate stipules, upper leaves often fushed, forming a disk.
Flowers pentamerous, in axillary pairs on a common stalk, or in 6 flowered whorls in terminal spikes or panicles, subtended by bracts and usualy bractlets; calyx five-toothed (sometimes almost untoothed); corolla tubular or bell-shaped and five-lobed, the lobes sometimes equal, but more frequently forming two “lips”, the upper lip composed of four short lobes, the lower lip of a single strap-shaped lobe.
The flowers often change from white to yellow in age and are often very fragrance.
Stamens 5, included or exserted, ovary inferior.
Fruit a fleshy, many seeded berry, white, yellow, red or black.
Distribution: temperate and subtropical regions of the northern hemisphere, northward extending to the arctic circle and south to the Malayan Archipelago, southern Asia, North Africa, Madeira and Mexico.