File:The book of grasses - an illustrated guide to the common grasses, and the most common of the rushes and sedges (1912) (14783446473).jpg

Identifier: bookofgrassesill00franuoft (find matches)
Title: The book of grasses : an illustrated guide to the common grasses, and the most common of the rushes and sedges
Year: 1912 (1910s)
Authors: Francis, Mary Evans, 1876-1941
Subjects: Cyperaceae Grasses -- United States Juncaceae
Publisher: Garden City, N.Y. : Doubleday, Page
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: MSN

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country. The English name of Three- awned Grass is descriptive of a peculiarity of the genus, as each flowering scale bears triple awns. In Poverty\\M Grass and Slender Aristida the outer awns of the flowering scale are shorter than the middle awn and are upright, while the long middle awn spreads stiffly at right angles to the spike. When the spikelets are comparatively few, as in the species mentioned above, these horizontally spreading awns are so characteristic that from them alone the grasses may easily be recog-nized. Poverty Grass (Aristida dichotoma) is the smallest of the eastern Aristidas and bears but short awns. Slen-der Aristida has a slightly larger flowering-head whose horizontal awns are fre-quently one half inch in length. The panicles of Purplish Aristida are long ; // II \ /I V^ and very bristly; the outer awns of each flowering scale nearly equal the horizontal middle awn in length, and IS Slender AristidaAristida gracilis Purplish AristidaAristida purpurasccns 102
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SKA-liEACll ARISTIDA (Ariitida tuberculosa). Connecticut specimen Illustrated Descriptions of the Grasses Spread slightly from the spike-like purple panicle; the plant isusually larger than either of the preceding species and bearslonger leaves. The awns of Sea-beach Aristida (Arisiida tuber-culdsd) are of nearly equal length and are united at their basefor one quarter of an inch or more. The panicles of this grassare few-flowered, and the awns are widely spreading or evenreflexed. The several species of eastern Aristidas are locally known asPoverty Grasses, from their appearing most frequently on wasteland and on soil that is too poor to support a richer vegetation.Many species are common in the West and Southwest, where,among others, is found the well-named Needle-grass, whose tripleawns sometimes attain a length of four inches. Slender Aristida. Aristida grdcilis Ell. Annual. Stem 6-24 tall, slender, erect, often branched. Ligule very short.Leaves bristle-like, i-^ long, hardly \ w

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