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Hungry or thirsty horses are more likely to eat poisonous plants, as are those pastured on overgrazed lands. [5] Animals with mineral deficiencies due to poor diets will sometimes seek out poisonous plants. [6] Poisonous plants are more of a danger to livestock after wildfires, as they often regrow more quickly. [7]
The yellow flowers are in a type of clog shape, containing three asymmetrical petals. These pods rattle when mature and they contain toxic alkaloids. These dehiscent pods are most likely a defense mechanism to assure that animals do not commonly ingest these plants, as doing so is poisonous to a number of them.
Locoweed (also crazyweed and loco) is a common name in North America for any plant that produces swainsonine, an alkaloid harmful to livestock.Worldwide, swainsonine is produced by a small number of species, most of them in three genera of the flowering plant family Fabaceae: Oxytropis and Astragalus in North America, [1] and Swainsona in Australia.
It has fleshy dark green, heart-shaped leaves and distinctive flowers with bright yellow, glossy petals. [ 4 ] [ 5 ] Native to Europe and Western Asia, it is now introduced in North America, where it is known by the common name fig buttercup and considered an invasive species .
Although the plant is often unwanted by landowners because of its toxic effect for cattle and horses, and because it is considered a weed by many, it provides a great deal of nectar for pollinators. It was rated in the top 10 for most nectar production (nectar per unit cover per year) in a UK plants survey conducted by the AgriLand project ...
It has small, round, yellow-green or green-striped fruit with soft spines, small yellow flowers and deeply lobed, light green leaves. The melon occurs in disturbed soil and cleared or bare areas, and thrives on summer moisture. [3] C. myriocarpus fruit. The fruit and foliage are toxic due to the presence of cucurbitacin.
The plant generally gets more toxic with maturity, with the exception of the berries (which have significant toxicity even while green). [165] Pieris japonica: Japanese pieris Ericaceae: The plant is poisonous if consumed by people or animals. [166] Plumeria spp. frangipani Apocynaceae: Contact with the milky latex may irritate eyes and skin ...
Cascabela thevetia (synonym Thevetia peruviana) is a poisonous plant native throughout Mexico and in Central America, and cultivated widely as an ornamental. It is a relative of Nerium oleander , giving it a common name yellow oleander .