| Strychnos tetragona | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Gentianales |
| Family: | Loganiaceae |
| Genus: | Strychnos |
| Species: | S. tetragona |
| Binomial name | |
| Strychnos tetragona | |
Strychnos tetragona is a species of plant in the Loganiaceae family. It is endemic to Sri Lanka.
Strychnine is a highly toxic, colorless, bitter, crystalline alkaloid used as a pesticide, particularly for killing small vertebrates such as birds and rodents. Strychnine, when inhaled, swallowed, or absorbed through the eyes or mouth, causes poisoning which results in muscular convulsions and eventually death through asphyxia. While it is no longer used medicinally, it was used historically in small doses to strengthen muscle contractions, such as a heart and bowel stimulant and performance enhancing drug. The most common source is from the seeds of the Strychnos nux-vomica tree.
Strychnos is a genus of flowering plants, belonging to the family Loganiaceae. The genus includes about 100 accepted species of trees and lianas, and more than 200 that are as yet unresolved. The genus is widely distributed around the world's tropics and is noted for the presence of poisonous indole alkaloids in the roots, stems and leaves of various species. Among these alkaloids are the well-known and virulent poisons strychnine and curare.
Diselma archeri is a species of plant of the family Cupressaceae and the sole species in the genus Diselma. It is endemic to the alpine regions of Tasmania's southwest and Central Highlands, on the western coast ranges and Lake St. Clair. It is a monotypic genus restricted to high altitude rainforest and moist alpine heathland. Its distribution mirrors very closely that of other endemic Tasmanian conifers Microcachrys tetragona and Pherosphaera hookeriana.
Beauprea congesta is a species of plant in the family Proteaceae. It is endemic to New Caledonia.
Helicia is a genus of 110 species of trees and shrubs, constituting part of the plant family Proteaceae. They grow naturally in rainforests throughout tropical South and Southeast Asia, including India, Sri Lanka, Indochina, Peninsular Malaysia to New Guinea and as far south as New South Wales.
Strychnos benthami is a species of plant in the Loganiaceae family. It is endemic to Sri Lanka.
Strychnos chromatoxylon is a species of plant in the Loganiaceae family. It is found in Cameroon, Central African Republic, and Ivory Coast.
Strychnos elaeocarpa is a species of plant in the Loganiaceae family. It is endemic to Cameroon. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Strychnos mellodora is a species of plant in the Loganiaceae family. It is found in Kenya, Mozambique, Tanzania, and Zimbabwe.
Strychnos millepunctata is a species of shrub or small tree in the Loganiaceae family. It is endemic to Côte d'Ivoire and grows in the lowland Eastern Guinean forests where it is threatened by habitat loss. S. millepunctata has been investigated for pharmacological properties of its alkaloids.
Strychnos staudtii is a species of plant in the Loganiaceae family. It is found in Cameroon and Gabon. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.
Tambourissa cocottensis, commonly known as Bois Tambour is a species of plant in the Monimiaceae family. The only population is endemic to the summit Montagne Cocotte, Mauritius.
Pyramidula is a genus of moss in the family Funariaceae. It contains the single species Pyramidula tetragona distributed in central North America as well as Europe and Africa. Pyramid moss is a common name.
Crassula tetragona is a succulent plant native to Southern Africa. It is widely distributed from the Orange River boundary of Namaqualand to beyond the Kei River in the Eastern Cape. "Tetragona" comes from the phyllotaxy of the leaves. It is popularly named the "miniature pine tree" among ornamental plant enthusiasts, for its popular use as a "pine tree" in Bonsai.
Nymphaea leibergii, also known as the dwarf waterlily and Leiberg's waterlily, is a perennial emergent aquatic plant belonging to the genus Nymphaea. It can be found across northern North America in ponds and slow moving streams. Populations of this plant are infrequent throughout its range, and it is protected as a state threatened plant in Maine and Minnesota.
Strychnos madagascariensis, the black monkey orange, is an African tropical and sub-tropical tree belonging to the Loganiaceae family. It is a tree with characteristically large fruit but can confused with some other species of the genus.
Strychnos toxifera, called bush rope and devil doer, is a species of flowering plant in the genus Strychnos, native to Costa Rica, Panama, Colombia, Ecuador, Venezuela, the Guianas, Brazil, and Bolivia. It is the principal source of calabash or gourd curare.
Tetragona is a genus of bees belonging to the family Apidae.
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