Macropiper excelsum

Juvadecene Pepper-tree roots Macropiper excelsum Miq. O. fasciatus Sth instar larvae Topical 30 pg 110... 

Other phytochemicals which exhibit JH activity include juvadecene (1-(3,4-methylenedioxyphenyI)-fraws-3-decene) isolated from roots of the pepper-tree, Macropiper excelsum Miq. [110], thujic acid (5,5-dimethyl-1,3,6-cycloheptatrien-l-carboxylic acid) extracted from the heartwood of western red cedar, Thujaplicata [111] andtagetone((E)-2,6-dimethyl-5,7-octadien-4-one) from the marigold, Tagetes minuta L. [112], There have been numerous reports of juvenoid activity of plant extracts (Table 5) however, to our knowledge, the compound(s) responsible for this activity have not been isolated and characterized. 

Nympha Piper Piper Macropiper excelsum PipMacexc... 

Botanical synonyms of P. methysticum include Macropiper methysticum Miquel, P. decu-manum Optiz, P. inebrians Scholander ex Parkinson and Bertero, and P. spurium Forst. Related species have been identified in a number of places, for instance, P. torricellense Lauterb. from New Guinea (Burkill, 1935 Sterly, 1970), P, puherulum Benth., the so-called Honolulu kava, P. excelsum Forster, from New Zealand, known to the native Maoris as kawa or kawa-kawa but without the properties of P, methysticum and whose leaves were used by them in the past in an infusion for headaches (Steinmetz, I960), P, plantageum Schlechter, native to Mexico and used there in the same manner as P, excelsum, and P, latifolium, synonymous with Al, latifolium Forster (Forster, 1777), endemic to Oceania and used in the native pharmacopoeia of Vanuatu (Vienne, 1981). 

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