An ethnobotanical study of useful plants in Gozamen Wereda with special emphasis on cultivatedrnplants was conducted from November 20/2009- January 1/2010. The study was aimed atrndocumenting indigenous knowledge of people on plants in their farming complex andrnmaintenance of local crop genetic resource. Six kebeles were selected based on altitude rangernbetween 1500 and 3500 m a s l., at which many crops can grow. Sixty farmers (10 females &50rnmales) were systematically selected from 120 farmers that have well established homegardenrnand farm fields. Ten key informants from 60 ordinary informants were selected systematically.rnThe data were collected using semi-structured interviews, direct field observation, grouprndiscussion and market survey. The collected data was analyzed by using preference ranking,rndirect matrix ranking, paired comparison, and use value analysis. A total of 136 plant speciesrn(29 trees, 30 shrubs, 73 herbs, and 4 climbers) in 48 families were collected and identified fromrntwo farming sites. The plants can be grouped in to 10 major use categories i.e., 39 multipurposernplants, 38 food plants, 19 medicinal plants, 10 spice plants, 8 neutracetical plants, 7 both spicernand medicinal plants, 4 both fragrant and medicinal plant, 3 stimulants, 1 fragrant plant and 7rnothers. Food plants are further classified in to major classes as cereals, pulses, oil crops, fruitsrnand vegetables. Preference ranking on major cereal crops for making â€˜injeraâ€™ and use value of 8rnfarmerâ€™s variety of Hordeum vulgare was made. Traditional practices like selecting the soil type,rnimproving the fertility of soil, determining time of sowing, obtaining planting materials throughrndifferent methods, seed storage techniques, weed and pest management, mixed cropping,rnperception about exotic seed and their effect shows the farmers diversified knowledge in theirrnfarming system. The market utility value of desired fragrant plants, vegetables and threats thatrnhinder production of major fruit and vegetable crops were further analyzed by pairedrncomparison. In general, the local people are experts on plants that are grown in their homesteadrnand farm fields. Before deciding to clear or cut or weed the plant, farmers evaluate the plantrnbased on different criteria acquired through their life long experience than ordinaryrnagriculturalists decide to reach conclusion about the plant. A greater evaluation criteria in kindrnand dimension have been giving a chance to the plant either tolerated, managed and/or cultivaternd by farmers so as to conserve agrobiodiversty of the study area.