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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 .
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 ...
Inflorescence in bloom. Solidago canadensis, known as Canada goldenrod or Canadian goldenrod, is an herbaceous perennial plant of the family Asteraceae. [2] It is native to northeastern and north-central North America [3] and often forms colonies of upright growing plants, with many small yellow flowers in a branching inflorescence held above the foliage.
The soft leaves (dark green on the upper surface, lighter underneath) are alternate, and narrowly oblong or wedge-shaped. The yellow flowers grow widely spaced in racemes at the end of the stem. [6] The pods are thin walled, and widely spaced along the stems, and when ripe are purple to black, containing about 18-20 small brown seeds. [6]
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.
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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Verbesina occidentalis has yellow disk flowers. The number of ray flowers will range anywhere from two to five petals. The most common petal number is two. [3] The flowers are sparse and are not evenly arranged around the head of the flower. This makes the plant looks like it is uneven or off balance. A distinctive feature of the plant is its ...