. 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. LABIATAE {MINT FAMILY) 349 to lance-shaped, pointed at both ends, finely clammy-hairy on both sides, entire, with very short petioles. Panicles loosely spreading, the flowers single or in pairs on forking branchlets, subtended by paired bracts; the flowers are blue, sometimes pink or white, their most noticeable feature being the four very long, upcurving, violet stamens, thrust far out beyond the co
. 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. LABIATAE {MINT FAMILY) 349 to lance-shaped, pointed at both ends, finely clammy-hairy on both sides, entire, with very short petioles. Panicles loosely spreading, the flowers single or in pairs on forking branchlets, subtended by paired bracts; the flowers are blue, sometimes pink or white, their most noticeable feature being the four very long, upcurving, violet stamens, thrust far out beyond the corolla — more than as long again; in the bud they are spirally coiled and both the common name and the "book-name" have reference to their remarkable appearance; corolla tube very slender, its lower lobe oblong and declined; calyx unequal, with three long and two short lobes, and when the withered corolla falls the four small, rough- ened, ovoid nutlets are in plain sight. (Fig. 241.) Means of control Enrich the land; when cultivated and supplied with humus, which will enable fig. 241. —Blue the soil to retain moisture, the drought- Curls (Trichostema dicho- loving weed will disappear. mum).. HOREHOUND Marrubium vulgare, L. Other English names: Marrube, Houndsbene, Marvel. Introduced. Perennial. Propagates by seeds. Time of bloom: June to September. Seed-time: August to November. Range: Maine and Ontario to South Carolina, Tennessee, and Texas. British Columbia to California. Habitat: Dry soil; upland fields and pastures. A most troublesome weed where sheep are kept, for the long points of the calyx-lobes harden into hooked spines which catch in the fleeces to the detriment of the latter and which also help. 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
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Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1919
