. 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. COMPOSITAE {COMPOSITE FAMILY) 465 Seeed-time: June to September. Range: Minnesota to the Northwest Territory, southward to Texas and Arizona. Also in Tennessee and locally in the Eastern States. Habitat: Meadows, roadsides, and waste land. Like its relatives, the Black-eyed Susan and Purple Cone-flower, this plant has been introduced in a number of widely separated localities by the agency of western
. 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. COMPOSITAE {COMPOSITE FAMILY) 465 Seeed-time: June to September. Range: Minnesota to the Northwest Territory, southward to Texas and Arizona. Also in Tennessee and locally in the Eastern States. Habitat: Meadows, roadsides, and waste land. Like its relatives, the Black-eyed Susan and Purple Cone-flower, this plant has been introduced in a number of widely separated localities by the agency of western baled hay and grass seeds. Stem one to nearly three feet tall, branching from the base, slender and bes»t with stiff, bristly hairs. Leaves alternate, dark green, thick, rough-hairy, strongly ribbed, pinnately divided into narrow, long-pointed segments; those on the stem are sessile or have very short petioles; those at the base have long, slender petioles and fewer seg- ments ; occasionally some are undi- vided and oblong. The heads have an elongated, cone-shaped, or nearly cylindrical disk, often more than an inch in length, set with grayish brown florets, perfect and fertile, the corollas fiveJobed but with very short tubes; rays neutral, four to ten in number, large and drooping, yellow with a brownish Fig. 325.— Prairie Cone- purple base or wholly of the darker ^ (Lepachya columnaris). color. Achenes short and flattened, with winged margins, and a pappus of one or two awl-like teeth. (Fig. 325.) Means of control should be the same as for the Purple Cone- flower. COMMON SUNFLOWER Helidnthus dnnuus, L. Native. Annual. Propagates by seeds. Time of bloom: July to September. 2h. 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
