Piper is an economically & ecologically significant genus in the personal Piperaceae that includes about 1,000 – 2,000 metal money of bush, herbs, & lianas, numbers of of which come then keystone mintage inside their native home ground, when others are the major invasive metal money in areas in which it is introduced. A genus contains coinage suitable for researching natural history, natural products chemistry, community ecology, & evolutionary biology. A diversification of this taxonomic group is of interest to understanding a evolution of plants.

Piper coinage have a pantropic distribution, & come virtually all usually obtained witharound the understory of lowl& tropical rainforests, however occurs as well in clearings and in higher elevation life zones like cloud forests; one metal money (P. kadsura from either southern Japan and southernmost Korea) is subtropical & could tolerate lightly wintertime frost. Peppers come typically dominant plants in which it is obtained.

Piper occurs as model genus for research around ecology & evolutionary biology. A diversity & ecological importance of the genus makes it an conspicuous candidate for ecological & evolutionary studies, though non amazingly, virtually all the food and drug administration has focused on the economically significant coinage P. nigrum (black pepper), P. methysticum (kava), and P. betle (betel).

Obligate & facultative ant mutualists found in a few Piper coinage have a heavy influence in their biology, making the two idealistic systems for search on the evolution of symbioses and the result of mutualisms in community.

;Selected species Piper angustifolium Piper auritum Piper betle Betel Piper borneense Piper cenocladum Ant piper Piper cubeba Cubeb Piper decurrens Piper grandifolium Piper guineense Benin pepper Piper kadsura Japanese pepper Piper imperiale Malia's piper Piper longum Long pepper Piper macrophyllum Piper magnificum Lacquered pepper Piper metallicum Piper methysticum Kava Piper nigrum Black pepper (a.k.the. white pepper, green pepper) Piper officinarum Piper ornatum Celebes pepper Piper porphyrophyllum Piper retrofractum Piper rubronodosum Piper rubrovenosum Piper sylvaticum Mountain long pepper Piper unguiculatum