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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 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.
They have yellow pea-flowers in pendulous leafless racemes 10–40 cm (4–15.5 in) long in spring, which makes them very popular garden trees. In L. anagyroides , the racemes are 10–20 cm (4–8 in) long, with densely packed flowers; in L. alpinum the racemes are 20–30 cm (8–12 in) long, but with the flowers sparsely along the raceme. [ 1 ]
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 .
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.
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The cap ranges from 5–15 cm (2–6 in) in width and is usually yellow with brownish areas, particularly at the centre. [4] The stem is 4–10 cm long and 1–4 wide, is yellow, and brownish at the base. [4] The gills are also yellow colour and the spores are white. [4] The skin layer covering the cap is sticky and can be peeled off.