Toksonomi dan Distribusi Haramonting (Rhodomyrtus tomentosa Aiton) di Sumatera Utara Bagian Selatan

Abstract

The research about morphology and distribution of haramonting (Rhodomyrtus tomentosa) was carried out in December 2013- August 2014 in Southern area Of Sumatera Utara Province. Study location are Labuhan Batu Selatan, Padanglawas, Padanglawas Utara, and Tapanuli selatan District. The aims of this study, to determine morphological variation and distribution area of haramonting in 4th district. The research used observation method Data was collected by observation and collection. Data collected about morphology, soil nutrient, phytochemicals constituent, environmental parameters, and coordinate point. Data about morphology and soil nutrient showed by descriptive analysis. Distribution data showed with map using Arc. View 3. 3 Software. The results showed morphology character same in each area. Variation just on habitat, bight stem, stem diameter, and skin stem texture. Leave, fruit, and skin stem phytochemicals constituent analysis showed, alkaloid, flavonoid, saponin, steroid, and tannin, have found. Soil Analysis showed different content in each area, N N (0,02-0,09%), P (8,44-10,44 ppm), and K (0,08-0,041 m.e/W0g). The map showed haramonting have found in 1500-4500 mm/years rainfall, and humic acrisols soil area.