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All parts of these plants are toxic, due to the presence of alkaloids. Grazing animals, such as sheep and cattle, may be affected and human fatalities have occurred. [106] Delphinium spp. larkspur Ranunculaceae: Contains the alkaloid delsoline. Young plants and seeds are poisonous, causing nausea, muscle twitches, paralysis, and often death.
According to the Plant List and Plants of the World Online, H. lanatum and H. maximum are both accepted names, the latter with no infraspecific taxa. [13] [20] [a] On the other hand, neither are recognized as accepted names by either the ITIS or NPGS. Besides H. lanatum and H. maximum, various scientific names have been attributed to this ...
Texas bullnettle (Cnidoscolus texanus), Attwater Prairie Chicken National Wildlife Refuge, Colorado Co., TX, USA; 15 May 2013. It is a perennial plant with erect or sprawling branching stems growing from thick root stock, up to 40 inches long and 8 inches thick. It has milky latex and stiff prickly glandular-based, stinging hairs.
Goatsrue, a federally listed noxious weed and toxic to humans and animals if ingested, stands 4 feet to 6 feet tall with white or purple pea-like flowers, Goatsrue can closely resemble other ...
A noxious weed, harmful weed or injurious weed is a weed that has been designated by an agricultural or other governing authority as a plant that is harmful to agricultural or horticultural crops, natural habitats or ecosystems, or humans or livestock. Most noxious weeds have been introduced into an ecosystem by ignorance, mismanagement, or ...
Echium plantagineum, commonly known as purple viper's-bugloss [1], Paterson's curse or Salvation Jane, is a species of the genus Echium native to western and southern Europe (from southern England south to Iberia and east to the Crimea), northern Africa, and southwestern Asia (east to Georgia).
Packera glabella (formerly Senecio glabellus) is one of several plants with the common name butterweed, this one has also been called cressleaf groundsel and yellowtop.It is native to central and southeastern North America but spreads so aggressively, overtaking other native plants, that it is considered [by whom?] invasive.
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