Botanical Attributes and Utility Indices of Some Grasses of Anambra State
Publication Date : 08/02/2021
A scientific study of the grass species of Anambra State was undertaken between January and December, 2020. The aim is a holistic identification of the grasses and determination of their Botanical attributes and Economic relevance. Samples were collected from Awka, Nnokwa (Anambra Central), Onitsha, Igbariam (Anambra North), Nnewi and Uli (Anambra South) to cover the three Senatorial zones of the State. The Design of the Study is Descriptive Field survey method. Taxonomic key employed in the identification of the grasses was basically, the tentative physiognomic – Ecological classifications of plant formations of the Earth. Height category: Blade length and flower colour were all established directly in the field by means of meter rule, measuring tapes, matchets, camera and visual observations. Questionnaires were also employed to capture the utility indices. At the end of the studies, 42 grasses were identified all from the grass family-Poaceae; perennial and annual grasses were numerically almost at par (21:21); small, average (30cm-1m), and (1.2m) very small grasses (4m) grasses; white, green and purple dominated flower colour; most grasses were useful in erosion control, as animal fodder species, as human food, ornamentals and medicinal plants. The only grasses in Anambra State that are given a measure of regard (respect) include: food species, fodder species, ornamental grasses and very few that has industrial relevance. Others are treated as unwanted plants.
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