Ipomoea tricolor
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| Ipomoea tricolor | ||||||||||||||
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| Image:Ipomoea violacea.jpg Ipomoea tricolor 'Heavenly Blue'
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| Ipomoea tricolor Cav. |
Ipomoea tricolor is a species of morning glory native to the New World tropics, and widely cultivated and naturalised elsewhere. It is a herbaceous annual or perennial twining liana growing to 2-4 m tall. The leaves are spirally arranged, 3-7 cm long with a 1.5-6 cm long petiole. The flowers are trumpet-shaped, 4-9 cm diameter, most commonly blue with a white to golden yellow centre.
Cultivation and uses
Horticulture
Numerous cultivars of I. tricolor with different flower colours have been selected for use as ornamental plants; widely-grown examples include 'Blue Star', 'Flying Saucers', 'Heavenly Blue', 'Heavenly Blue Improved', 'Pearly Gates', 'Rainbow Flash', 'Summer Skies' and 'Wedding Bells'.
In some areas it is considered by certain people to be an invasive weed due to its fast rate of growth and its prodigious seed production.
Hallucinogenic use
The seeds contain ergoline alkaloids, and have been used for centuries by many Mexican Native American cultures as a hallucinogen; they were known to the Aztecs as tlitliltzin, the Nahuatl word for "black" with a reverential suffix. In South America, the seeds are also known as badoh negro.
Their traditional use was first discovered by Richard Schultes in 1941 described Mexican Native American use, in a short report documenting the use going back to Aztec times cited in TiHKAL by Alexander Shulgin. Further research was published in 1960, when Don Thomes MacDougall reported that the seeds of Ipomoea tricolor were used as sacraments by certain Zapotecs, sometimes in conjunction with the seeds of Rivea corymbosa, another species which has a similar chemical composition, with lysergol instead of ergometrine. This more widespread knowledge has led to a rise in recreational use by people other than Native Americans.
The hallucinogenic properties of the seeds are usually attributed to ergine (also known as d-lysergic acid amide, or LSA), although the validity of the attribution remains disputed. While ergine is listed as a Schedule III substance in the United States, parts of the plant itself are not controlled, and seeds and plants are still sold by many nurseries and garden suppliers.
The seeds also contain glycosides, and these compounds are the likely cause of nausea reported by those who have eaten the seeds, although most experienced users attribute the effect to the commercial treatment of the seeds, as the nausea is a lot less common when the seeds are home-grown without any pesticides. However, minor to medium-level cramps and a mild headache is common in inexperienced users, due to, as was mentioned before, the glycosides the seeds contain.
External links
Ergolines | |
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| Lysergic acid derivatives | Bromocriptine, Cabergoline, Ergine, Ergonovine, Ergotamine, Lysergic acid, Lysergol, LSD, D-Lysergic acid hydroxyethylamide, Lisuride, Methergine, Methysergide, Pergolide |
| Hallucinogenic lysergamides | AL-LAD, ALD-52, BU-LAD, CYP-LAD, DAL, DAM-57, Ergonovine, ETH-LAD, LAE-32, LSD, LPD-824, LSM-775, D-Lysergic acid N-(α-hydroxyethyl)amide, Methylergonovine, MLD-41, PARGY-LAD, PRO-LAD |
| Other ergolines | Ergoline |
| Natural sources | Argyreia nervosa, Claviceps spp., Ipomoea tricolor, Ipomoea violacea, Rivea corymbosa |
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
