. 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. 436 COMPOSITAE (COMPOSITE FAMILY). Fig. 302. —Purple- stemmed Aster {Aster mi- niceus). X J. rather short pedicels, each about an inch broad, with light yellow disk and many pale purple or lilac rays; bracts of the involucre usually in two rows, linear, smooth, green, spreading. Achenes hairy, the long, tufted pappus nearly white. This weed is in bloom so early that flowering stems are often cut with
. 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. 436 COMPOSITAE (COMPOSITE FAMILY). Fig. 302. —Purple- stemmed Aster {Aster mi- niceus). X J. rather short pedicels, each about an inch broad, with light yellow disk and many pale purple or lilac rays; bracts of the involucre usually in two rows, linear, smooth, green, spreading. Achenes hairy, the long, tufted pappus nearly white. This weed is in bloom so early that flowering stems are often cut with hay, and seeds ripen on the stalks. (Fig. 302.) Means of control Deprive the plant of its loved mois- ture by better drainage. Prevent seed production and starve the perennial roots by frequent close cutting, and so fertilize, cultivate, and improve the ground that better plants will supersede the weed, ROBIN'S PLANTAIN Ertgeron pulchillus, Michx. Other English names: Blue Spring Daisy, Poor Robin, Rose Petty. Native. Perennial. Propagates by seeds and off-sets. Time of bloom: April to June. Seed-time: May to July. Range: Nova Scotia to Ontario and Minnesota, southward to Florida and Louisiana. Habitat: Hillsides, woodland borders, moist banks. Stems slender, simple, softly hairy, ten to twenty inches tall. Base-leaves tufted, spatulate or long obovate, obtuse, softly hairy on both sides, with a few shallow teeth, and tapering to short- margined petioles; stem-leaves small, distant, narrow-ovate to lance-shaped, sessile or partly clasping, usually entire. Heads few, in a terminal cluster, each an inch or more broad, with many narrow purple rays varying from pale lilac to deep violet; disk broad and flat, greenish yellow, its florets perfect. Achenes flattened, nearly smooth, with pappus of a single row of fine Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1919
