. Bulletin of the Department of Agriculture. Agriculture; Agriculture. IDENTIFICATION" OF GRASSES. 13 10. Annual bluegrass (Poa annua; fig. 14). A low-growing, glabrous, tufted annual; leaves folded in the bud; collar glabrous; auricles none; ligule medium long, acute, entire; sheaths com- pressed, glabrous; blades flat, short, linear, pale yellowish green, one-eighth inch wide. This grass often heads out when but 1 inch high. Rootstocks are rare; when present, very short. In the South it makes considerable winter growth. Two white lines along the midnerve may be noticed by holding a
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. IDENTIFICATION" OF GRASSES. 13 10. Annual bluegrass (Poa annua; fig. 14). A low-growing, glabrous, tufted annual; leaves folded in the bud; collar glabrous; auricles none; ligule medium long, acute, entire; sheaths com- pressed, glabrous; blades flat, short, linear, pale yellowish green, one-eighth inch wide. This grass often heads out when but 1 inch high. Rootstocks are rare; when present, very short. In the South it makes considerable winter growth. Two white lines along the midnerve may be noticed by holding a blade up to the light and examining with a lens. 11. Canada bluegrass (Poa compressa; fig. 15). A glabrous, bluish green perennial with creeping rootstocks forming a loose turf; leaves folded in the bud; collar light green; auricles none; ligule membranous, entire, acute, medium long; sheaths strongly compressed, often tinged with red; blades fiat, long, linear, the apex like the bow of a boat, bluish green but with double light lines along the midnerve when viewed by transmitted light; rootstocks about one-sixteenth inch in diameter, each branch usually terminating in a single shoot. This grass has more of a bluish color and grows in looser turf than Kentucky bluegrass, with which it is most likely to be 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 United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
Size: 1402px × 1781px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
