. The Indiana weed book. Weeds. THE INIilAJJA WEED BOOK. occur mostly in grain fields, gardens, lawns and meadows. Many of the seeds have an oily covering which prevents decay and enables them to retain vitality for years. Cultivated members are cabbage, turnip, cauliflower and radish. 42. Lepidium virqinicum L. Wild Pepper-grass. Tongue-grass. Canary- grass. (A. N. 2.) Erect, smooth, much branched, 6-15 inches high; leaves tapering to base, the upper linear or lanceolate, entire; lower spoon-shaped, more or less notched on sides. Flowers small, White; stamens only 2. Pods small, rounded or ov
. The Indiana weed book. Weeds. THE INIilAJJA WEED BOOK. occur mostly in grain fields, gardens, lawns and meadows. Many of the seeds have an oily covering which prevents decay and enables them to retain vitality for years. Cultivated members are cabbage, turnip, cauliflower and radish. 42. Lepidium virqinicum L. Wild Pepper-grass. Tongue-grass. Canary- grass. (A. N. 2.) Erect, smooth, much branched, 6-15 inches high; leaves tapering to base, the upper linear or lanceolate, entire; lower spoon-shaped, more or less notched on sides. Flowers small, White; stamens only 2. Pods small, rounded or oval, notched at tip; seeds light brown, flattened, 1/10 inch wide, half as long, egg-shaped with a very distinct border. (Fig. 48.) Common everywhere in dooryards, waste grounds, fields and gardens. April-Oct. Very troublesome at times in clover, espe- cially in light sandy soil after the first crop is cut; the seeds separable from those of the clover only by care- ful screening. Many of the seeds germinate in autumn forming flat ro- settes with a single central tap-root, from which the flowers and seeds of early spring are produced. Spar- rows of all kinds are very fond of the pods and eat vast numbers of them. Remedies: thorough and con- tinuous cultivation; disc harrowing in late fall or early spring; hand pull- ing from lawns; spraying. The apetalous pepper-grass (L. apetalum Willd.), basal leaves more cut-lobed and petals minute or want- ing, and the field pepper-grass (L. campestre L.), downy or hoary pubescent, leaves clasping the stem, pod spoon-shaped, both occur in the State and will be more common. Remedies the same. 43. Sisymbrium officinale L. Hedge Mustard. (A. I. 2.) Erect with rigid spreading branches, 1-3 feet high; leaves cut-lobed, the lower segments turned backward, the upper leaves nearly sessile. Flowers small, pale yellow. Pods slender, erect, awl-shaped, J inch long, pressed closely against the stem; seeds brown, oblong, cylindrical on back, grooved on th
Size: 1314px × 1902px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1912
