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Cestrum
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Cestrum is a genus of - depending on authority - 150-250 species of flowering plants in the family Solanaceae. They are native to warm temperate to tropical regions of the Americas, from the southernmost United States (Florida, Texas: Day-blooming Cestrum, C. diurnum) south to the Bío-Bío Region in central Chile (Green Cestrum, C. parqui). They are colloquially known as cestrums or jessamines (from "jasmine", due to their fragant flowers).
They are shrubs growing to 1-4 m tall.

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Encyclopedia
Cestrum is a genus of - depending on authority - 150-250 species of flowering plants in the family Solanaceae. They are native to warm temperate to tropical regions of the Americas, from the southernmost United States (Florida, Texas: Day-blooming Cestrum, C. diurnum) south to the Bío-Bío Region in central Chile (Green Cestrum, C. parqui). They are colloquially known as cestrums or jessamines (from "jasmine", due to their fragant flowers).
They are shrubs growing to 1-4 m tall. Most are evergreen, a few are deciduous. All parts of the plants are toxic, causing severe gastroenteritis if eaten.
Uses and ecology
Several species are grown as ornamental plants for their strongly scented flowers.
Some are invasive species. Especially notorious is Green Cestrum (C. parqui) in Australia, where it can cause serious losses to livestock which eat the leaves (particularly of drying broken branches) unaware of their toxicity.
C. laevigatum is employed by wajacas (shamans) of the Craós (Krahós, Krahô) tribe in Brazil. It is used "to see far", i.e. to aid in divination. Like the other hallucinogenic plants consumed by them, Craós wajacas consider it a potent entheogen, not to be taken by the uninitiated.
Cestrum species are used as food by the caterpillars of several Lepidoptera. These include the Glasswing (Greta oto), and Manduca afflicta which possibly feeds only on Day-blooming Cestrum (C. diurnum). It is either known or suspected that such Lepidoptera are able to sequester the toxins from the plant, making them noxious to many predators.
Selected species
- Cestrum ambatense Francey
- Cestrum aurantiacum – Orange Cestrum, Orange-flowering Jessamine, Yellow Cestrum, "orange jessamine"
- Cestrum auriculatum L'Hér.
- Cestrum bracteatum Link & Otto
- Cestrum chimborazinum
- Cestrum corymbosum Schltdl.
- Cestrum daphnoides Griseb.
- Cestrum diurnum L. – Day-blooming Cestrum, Day-blooming Jessamine
- Cestrum ecuadorense Francey
- Cestrum elegans (Brongn. ex Neumann) Schltdl.
- Cestrum endlicheri Miers.
- Cestrum fasciculatum – Early Jessamine, "red cestrum"
- Cestrum humboldtii Francey
- Cestrum laevigatum Schltdl. – dama-de-noite (Brazil)
- Cestrum lanceolatum Miers
- Cestrum lanceolatum var. lanceolatum
- Cestrum lanuginosum Ruiz & Pavón
- Cestrum latifolium Lam.
- Cestrum laurifolium L'Hér.
- Cestrum meridanum Pittier
- Cestrum mutisii Roem. & Schult.
- Cestrum nocturnum – Night-blooming Cestrum, Night-blooming Jessamine, "Lady of the Night", Raat ki Rani (South Asia)
- Cestrum pacificum
- Cestrum parqui – Green Cestrum, Chilean Cestrum, Green Poisonberry
- Cestrum peruvianum Roemer & Schultes
- Cestrum petiolare Humboldt, Bonpland & Kunth
- Cestrum psittacinum Stapf
- Cestrum quitense Francey
- Cestrum roseum Humboldt, Bonpland & Kunth
- Cestrum salicifolium Jacq.
- Cestrum santanderianum Francey
- Cestrum sendtnerianum Mart. ex Sendt.
- Cestrum sessiliflorum Schott ex Sendtn.
- Cestrum stipulatum Vell.
- Cestrum strigilatum Ruiz & Pav.
- Cestrum stuebelii Hieron.
- Cestrum tomentosum L.f.
- Cestrum validum Francey
- Cestrum viridifolium Francey
Footnotes
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