. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. GRAMINEAE. Vol. I. 3. Agropyron pungens (Pers.) R. & S. Coast Wheat-grass. Fig. 688. Triticum pungens Pers. Syn. 1: 109. 1805. Agropyron pungens R. & S. Syst. 2: 753. 1817. Agropyron tetrastachys Scribn. & Sm. Bull. U. S. Dept. Agric. Div. Agrost. 4: 32. 1897. Glaucous. Culms rigid, slender, erect, ih0-3° tall, from a running rootstock; sheaths shor
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. GRAMINEAE. Vol. I. 3. Agropyron pungens (Pers.) R. & S. Coast Wheat-grass. Fig. 688. Triticum pungens Pers. Syn. 1: 109. 1805. Agropyron pungens R. & S. Syst. 2: 753. 1817. Agropyron tetrastachys Scribn. & Sm. Bull. U. S. Dept. Agric. Div. Agrost. 4: 32. 1897. Glaucous. Culms rigid, slender, erect, ih0-3° tall, from a running rootstock; sheaths shorter than the in- ternodes, smooth and glabrous; ligule wanting; blades erect, acuminate, s'-8' long, 2" or less wide, smooth beneath, glaucous above, scabrous on the margins; spikes long-exserted, 3-5' long, 4-sided; spikelets crowded, 6"-io" long, 6-11-flowered, appressed to the 4-angled articulated rachis, the angles hispidulous; empty scales lanceolate, 5" long, rough on the keel, 5-7-nerved; flowering scales lanceolate, keeled, rough toward the apex, acute, awn-pointed or short-awned. Sandy beaches, coast of Maine. Introduced from Europe. July-Aug. 4. Agropyron Smithii Rydb. Western Wheat-grass. Fig. 689. A. repens glaucum Scribn. Mem. Torr. Club, 5: 57, in part. 1894. A. spicatum Scribn. & Sm. Bull. U. S. Dept. Agric. Div. Agrost. 4: 33, in part. 1897. Pale green, glaucous. Culms li°-4° tall, erect, from a slender creeping rootstock, smooth and glabrous; sheaths shorter than the internodes, smooth; ligule a short membranous ring; blades erect, 2'-8' long, 2"-^" wide, acuminate, very- scabrous above, smooth beneath, becoming invo- lute when dry; spike long-exserted, strict, 4'-8' long; spikelets crowded, divergent from the rachis, compressed, lanceolate when closed, i'-i' long, 6-12-flowered; empty scales acuminate, awn-pointed, shorter than the spikelet, hispidu- lous on the keel; flowering scales s"-6" long, acute or awn-poin
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
