Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Achnatherum calamagrostis, also termed Stipa calamagrostis, is a species of grass known by the common names Spear Grass, Needle Grass, and Silver Spike Grass. It is an ornamental grass native to the clearings in the mountains of central and southern Europe, which grows in mounds of blue-green leaves and long, silvery plumes. Poaceae (formerly known as Gramineae) is a family in the Class Liliopsida (the monocots) of the flowering plants. Plants of this family are usually called grasses, or, to distinguish them from other graminoids, true grasses; the shrub- or tree-like plants in this family are called bamboo (there are also herbaceous, non-woody bamboos). There are about 600 genera and some 9,000–10,000 or more species of grasses (Kew Index of World Grass Species).

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