Piper piscatorum Trel. & Yunck.

Subshrub, to 1 m tall. Stem glabrous or glabrescent; upper internodes finely striate. Petiole 0.5-2 cm long, vaginate at base; blade subcoriaceous, dull green, not conspicuously glandular-dotted, elliptic-oblong to narrowly ovate, (5.5-)7.5-17(-19.5) x (2.5-)3.5-6.5(-7.5) cm, apex acuminate, base equal or almost equally attached to petiole, subacute to obtuse or rounded, glabrous; pinnately veined, secondary veins (5-)7-8(-11) per side, originating from throughout primary vein, anastomosing well within margin, impressed or slightly prominulous above, prominent below, tertiary venation obsolete. Inflorescence erect; peduncle 0.4-0.5(-1) cm long, glabrous; spike 4-7 cm long, green, apiculate; rachis pubescent; floral bracts cucullate, glabrous. Infructescence to 6 cm long; fruits separate at maturity, not sulcate, globose, 1.5 mm in diam., papillose at apex, glabrescent, stigmas 4, sessile.

Uses: Roots and branches are used as fish poison; also used to alleviate pain of teeth and gums. ( McFerren, M.A. & E. Rodriguez J. Ethnopharmacology 60 183-187 1998 ).According to R. Callejas, the plants have an anaesthetic effect.