Poa Bigelovii

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Poa bigelovii is a species of grass known by the common name Bigelow's bluegrass. It is native to the southwestern United States and northwestern Mexico, where it grows in shady spots in desert and plateau habitat. It is an annual grass growing in small clumps up to 40 centimeters tall. The inflorescence is a narrow, compact, cylindrical series of hairy spikelets. The spikelets sometimes have a curly tuft of hairs or cobwebby fibers near their bases. 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). Plant communities dominated by Poaceae are called grasslands; it is estimated that grasslands comprise 20% of the vegetation cover of the earth.