The combination of alder (Alnus acuminata H.B.K.) with pastures, mainly Pennisetum clandestinum (kikuyu grass) and P. Purpureum (elephant grass) is a traditional practice in Costa Rican dairy highlands (between 1300–2500 masl). People believe that the pasture grows greener under the trees [Combe, 1979]. Alder is not only advantageous for fodder production but also for fuelwood and timber. It produces an additional source of income to the small farmer.