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Contains an enzyme which destroys vitamin B 1, leading to brain damage in sheep and horses [10] Melilotus: Sweetclover Includes Melilotus alba (white sweetclover) and M. officinalis (yellow sweetclover), can be grazed as a forage crop, but mold or spoilage converts coumarins to toxic dicumarol, thus moldy hay or silage is dangerous [5] Nerium ...
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 .
The primary source of toxicity for many species of Crotalaria is the presence of pyrrolizidine alkaloids, which are poisonous to birds and large mammals. Crotalaria retusa seeds are some of the most toxic of Crotalaria species. [9] Pyrrolizidine alkaloids in honey are a threat to human health. [10]
Hypericum perforatum, commonly known as St John's wort (sometimes perforate St John's wort or common St John's wort), is a flowering plant in the family Hypericaceae.It is a perennial plant that grows up to 1 metre (3 ft 3 in) tall, with many yellow flowers that have clearly visible black glands around their edges, long stamens (male reproductive organs), and three pistils (female reproductive ...
Complete removal of the rhizomes or poisoning, (usually before flowers are matured), is the only certain way of controlling the plant if it is considered a weed. [8] When Hedychium gardnerianum is particularly virulent, annual follow up is required for some years to prevent re-infestation.
Cuscuta. Cuscuta (/ k ʌ s ˈ k juː t ə /), commonly known as dodder or amarbel, is a genus of over 201 species of yellow, orange, or red (rarely green) parasitic plants.Formerly treated as the only genus in the family Cuscutaceae, it now is accepted as belonging in the morning glory family, Convolvulaceae, on the basis of the work of the Angiosperm Phylogeny Group. [1]
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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 .