Description. The dermatitis appears to be due only to mechanical irritation from plant floral bracts, which pierce the skin and stimulate an urticarial reaction." The stems are dull green or reddish green, round, and smooth. It is also used to treat a wide variety of infections. Prickly Sowthistle Sonchus asper Aster family (Asteraceae) Description: This plant is a spring or summer annual (usually the former) that becomes 1-3' tall, branching sparingly in the upper half. I have a prickly weed (a thistle?) Lawn burweed (Photo courtesy of Alabama Extension) By Bethany A. O'Rear. My theory is that they come back because they have a deep root system that is expanding under ground, and when I pull the leafy plant, the root remains and sends up replacements. The stem is thick, hallow, hairless. that is invading my yard, see pictures. Urticaria is simply an itchy, stinging, hive-like rash that irritates the skin. Sow thistle plants grow wild all over the United States. Botanical Name: Sonchus asper Other names: Spiny sow-thistle, Spiny milk-thistle, Spiny-leaved sow-thistle, Spiny annual sow-thistle Family: Asteraceae. A lighter works best, but you can use a match or build a campfire, as well.Hold the part of the needle or blade that is going to touch the wound over an open flame until the metal reddens—for about a minute—then let it cool before you proceed. Sonchus oleraceus (sow thistle) is commonly used as a fodder. Many types of thistles and plants cause similar reactions, and if … Sonchus oleraceus used in the treatment of headaches, general pain, diarrhea, menstrual problems, fever, hepatitis, salmonella infection, wars, eye problems, liver infections, infections, inflammation and rheumatism. The competitiveness of wheat is greatly influenced by row spacing and to a lesser extent by crop density. As for the sow thistle’s botanical name: Sonchus is the ancient Greek name for the plant and means “hollow” referring to the plant’s hollow stem, a point of identification. Annual, spreading by seed which have short plumes (pappus) of silvery-green hairs. Although grazing animals (and butterflies) actually prefer the Sonchus to grass farmers rant about the plant because it’s a weed amongst their crop. Common names: Sonchus asper, the prickly sow-thistle, rough milk thistle, spiny sowthistle, sharp-fringed sow thistle, or spiny-leaved sow thistle. When tackling these weeds in their garden, you may have the unfortunate luck to find out that you are allergic to it. Weed biomass increases by up to 90% under wheat grown at a row spacing of 50cm compared with 25cm. Older plants can be simmered to reduce bitterness and soften the prickly spines. I have tried pulling them out, but they always return and seem to be multiplying exponentially. A tough weed to kill, the flower heads on thistles possess thousands upon thousands of thistle seeds, which allows them to spread at an exponential rate both above and below the soil. This is the simplest and quickest method. Knowing the best strategies for how to get rid of thistle will help you rid your garden and lawns of these pesky intruders before they completely take over. Q. The height of the stem can be 80-cm. Because their seed is numerous, quick to germinate and airborne, thistle plants can spread far and wide. Last spring, I noticed our family dog almost tip-toeing through the yard. Prickly Sow-thistle. To get the most out of harvesting sow thistle, its good to look for younger weeds, which are flavorful and best to harvest when they are about 4 to 12 inches high. sowthistle plant numbers. lawn-burweed-343x275.jpg. How to Disinfect a Needle With Fire In the Wilderness. It often has branches on its basal part. 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