. 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. EUPHORBIACEAE {SPURGE FAMILY) 267 branches extended in all directions, red where exposed to the light but green underneath. Leaves opposite, oblong, from a quarter-inch to nearly an inch in length, short-petioled, very finely toothed, usually with a purplish brown spot near the center; stipules nearly linear, tipped with a fringe of bristles. Flowers on peduncles about as long as the petioles, the in
. 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. EUPHORBIACEAE {SPURGE FAMILY) 267 branches extended in all directions, red where exposed to the light but green underneath. Leaves opposite, oblong, from a quarter-inch to nearly an inch in length, short-petioled, very finely toothed, usually with a purplish brown spot near the center; stipules nearly linear, tipped with a fringe of bristles. Flowers on peduncles about as long as the petioles, the involucres bearing four minute, cup- shaped glands with narrow red appendages. Pods angled and hairy, with ash-gray, four-angled seeds which are a frequent im- purity in the seeds of grass and clover. Means of control In cultivated ground, persistent hoe- cutting as soon as the first flowers appear. Grasslands badly infested should be put under cultivation, the ground being fer- .... , ,, , ' 8 i ., . Fig. 187.— Spotted tilized well before reseedmg heavily to Spurge (.Euphorbia mam- grass or clover, lata)- X§.. SWOW-ON-THE-MOUWTAIN Euphdrbia marginata, Pursh. Other English name: White-margined Spurge. Native. Annual. Propagates by seeds. Time of bloom: May to September. Seed-time: June to October. Range: Minnesota to Colorado, southward to Texas, spreading eastward to Ohio; introduced in Eastern States and freely escaping. Habitat: Dry soil; fields, pastures, waste places. The handsomest of our native "Spurges, but dangerous to handle, as the copious milky juice when in contact with the skin causes a swelling and eruption similar to that produced by Poison Ivy; persons unacquainted with its quality often pluck it for its beauty and suffer for it. Honey made from its flowers is poisonous and unfit to use, acting as a violent emetic and purge. Stem rather stout, two to three feet tall, erect, slightly grooved,. Please note that these images are extracted from scanned page i
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectweeds, bookyear1919
