. 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. 294 ONAGRACEAE (.EVENING PRIMROSE FAMILY) slim petiole; when growing in mucky ground, they are smaller, nearly sessile, blunt-pointed, and reddish. Flowers axillary, sessile, solitary, scarcely a tenth of an inch broad; they have a top-shaped calyx with four pointed triangular lobes, and sometimes four small reddish petals, though thesa are often wanting, particularly in floating plants; stamens four
. 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. 294 ONAGRACEAE (.EVENING PRIMROSE FAMILY) slim petiole; when growing in mucky ground, they are smaller, nearly sessile, blunt-pointed, and reddish. Flowers axillary, sessile, solitary, scarcely a tenth of an inch broad; they have a top-shaped calyx with four pointed triangular lobes, and sometimes four small reddish petals, though thesa are often wanting, particularly in floating plants; stamens four and stigma four-parted; ovary four-celled. Capsule four-sided and four-celled, flat at the top, containing many very fine, wrinkled, brown seeds. Means of control Only by digging or hand-pulling can this obnoxious little plant be removed, and the work needs to be done early, before the first development of seed. GREAT WILLOW-HERB Epilbbium angustifblium, L. {Chammnerion angustifblium, Scop.) Other English names: Fireweed, Spiked Willow-herb. Native. Perennial. Propagates by seeds. Time of bloom: July to August. Seed-time: August to September. Range: Labrador to Alaska, southward to North Carolina and Kansas, in the Rocky Mountains to Arizona, and on the Pacific Coast to California. Habitat: Low grounds and thickets; land that has been newly cleared or burnt over. Stem two to six or more feet in height, somewhat woody, rather stout, erect, simple or branched from the base, usually reddish, smooth or sometimes finely hairy above. Leaves alternate, narrow lance-shaped, thin, entire or minutely toothed, pale beneath, with very short petioles and pinnate veins united in marginal loops. Flowers in large terminal racemes, purple, magenta, pink, or sometimes white, very showy; petals four, WUtow-herb (EpYlobium rounded and entire, with twice as many sta- angustifolium). x i. mens and an elongated pink style with fout-. Fig. 205. — Great. Please note that these images are extracted f
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1919
