. A manual of weeds : with descriptions of all the most pernicious and troublesome plants in the United States and Canada, their habits of growth and distribution, with methods of control . Weeds. GRAMINBAE (GRASS FAMILY) 39 Shallow plowing or surface cultivation merely stimulates the growth of the grass. PORCUPINE-GRASS Stlpa spdrtea, Trin. Other English names: Weather Grass, Needle Grass, Auger-seed Grass. In South. Dakota it is called Wild Oats. Native. Perennial. Propagates by seeds. Time of bloom: June to July. Seed-time: July to August. Range: Prairies of the Middle Western States from O
. A manual of weeds : with descriptions of all the most pernicious and troublesome plants in the United States and Canada, their habits of growth and distribution, with methods of control . Weeds. GRAMINBAE (GRASS FAMILY) 39 Shallow plowing or surface cultivation merely stimulates the growth of the grass. PORCUPINE-GRASS Stlpa spdrtea, Trin. Other English names: Weather Grass, Needle Grass, Auger-seed Grass. In South. Dakota it is called Wild Oats. Native. Perennial. Propagates by seeds. Time of bloom: June to July. Seed-time: July to August. Range: Prairies of the Middle Western States from Ohio to the Rocky Mountains, north to Manitoba, British Columbia, and the Saskatchewan region. Habitat: Dry soil; wild meadows and pastures. A large, stout grass, growing in tufts from a matted cluster of fibrous roots. Culms two to four feet tall, simple, erect, smooth. Sheaths long, mostly overlapping, slightly rough; basal blades about half as long as the culm, involute, and tapering to a thread-like point; stem leaves six inches to a foot long, hardly more than a sixth of an inch wide, gener- ally flat but sometimes involute, with long, attenuate points. Pani- cles long and slim, with erect branches, the base at first often enclosed by the sheath but later much exserted. Spikelets one-seeded, the glumes smooth, very narrow and bristle-pointed, exceeding an inch in length; the lemma tightly enfolding the seed, hard, stiff, brown, its lower part clothed with short rigid hairs and having a sharp- pointed beak or callus, and at the tip an awn, sometimes six inches FlQ 15 _ porcupine_graas (stipa long, rough, stiff, strongly twisted sparted). x $.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Georgia, Ada Eljiva, 1859-1921. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1919
