Perennial herb with prickles; leaves alternate and simple, lobed or coarsely toothed; flower white to purplish, 5-parted; fruit a yellow berry. In fact, the horse nettle is a relative of the domestic tomato plants, but it has a much higher concentration of toxic alkaloids and can make you very ill. Red maple hybrids, such as silver and sugar maple, also have toxins. Tox-icity is usually higher in late summer to fall than in the spring. See below Description. It’s a perennial weed common throughout most of the country. Phonetic Spelling so-LAN-num kair-oh-lin-EN-say This plant has medium severity poison characteristics. Horse nettle is a nightshade. Toxic when dry? It is estimated that one to 10 pounds of ingested plant material is fatal for horses. Black nightshade, poison berry, yerba mora (Solanum nigrum). The toxicity may depend upon the maturity of the plants, because more toxins are present in the fruits than in the leaves. Yes. Well, horse nettle is a native plant. Toxic Agent. Carolina horse nettle can be toxic to livestock. Potential for Toxicity: Moderate. They all contain a glycoalkaloid called solanine in the leaves, shoots, and unripe (green) berries. Bull Nettle Carolina Nettle, Horse Nettle Laportea candensis d c All Parts Burn Plant Aloe Vera Aloe barbadensis d c Sap Burning Bush Wahoo, Spindle Tree Euonymus atropurpurea d c All Parts (Euonymous occidentalis) Burdock Arctium lappa Linn. Horse Nettle (Solanum carolinense) – Toxin(s) involved: Solanine. Common poison species. Nightshades (Solanum species) are many; this genus includes many potentially-poisonous members such as potato, horse nettle and many nightshades. Toxic when dry? Nightshade Family (including Horse Nettle): The nightshade family (Solanum species) contains many toxic plants, including horse nettle, black nightshade, bittersweet nightshade, some species of groundcherry, and even tomatoes and potatoes. Management in Pastures and Hay Fields As is the case with most other weeds, prevention is an important component of an overall management plan. The toxicity may depend upon the maturity of the plants, because more toxins are present in the fruits than in the leaves. In the case of horsenet- ... milkweed, nightshade, horse nettle and star of Bethlehem as weed species. There are so many different tomato varieties on the market today that it would be very easy to mistake horse nettle for a wild tomato, especially if the fruit has already been picked. The plant affects the central nervous system and the gastrointestinal tract. toxic than leaves, which are more toxic than stems and roots. Horse nettle also produces a fruit that is about 1/2 inch in diameter; it is green with light green vertical bands until maturity, when it becomes yellow. Tomatoes are closely-related to this genus and contain the same toxic agent. The problem is that horse nettle has … d c All Parts Burrow Weed Jimmy Weed Haplopappus heterophyllus d c All Parts Bushman's Poison Acokanthera spp. Clinical Signs: Diarrhea, colic, hemorrhagic, gastroenteritis, abnormal heartbeat. ... the horse chestnut, are rated as a moderately to highly toxic. Yes. Nightshade Family: The nightshade family contains many toxic plants, including horse nettle, black nightshade, bittersweet nightshade, some species of groundcherry, and even tomatoes and potatoes. Toxins (gallic acid and others) destroy red blood cells. Toxicity - extremely toxic (1.5-3 pounds cause toxicity) Poisonous part - wilted or dried leaves; Symptoms - breathing difficulties, jaundice, dark brown urine, death. Pasture Weed Fact Sheet W 264 . Nightshades contain glycoalkaloids, which are broken down in the body to sugars and alkaloids. d c Fruit & Flowers Many common broadleaf herbicides will control horse nettle.