Ipomoea carnea

Ipomoea carnea (Jacq.) is recorded in several ethnobotanical surveys as a source of herbal preparations. In southwestern Nigeria, healers grind fresh leaves, boil them in water for about 20 min, and drink the resulting decoction for dysentery (according to Olowe et al., 2012). In the Yucatán peninsula of Mexico, Maya healers crush the same leaves, macerate them in cold water for several hours, and apply the moist mass as a poultice to treat insect bites and minor skin wounds (according to Pérez‑Jiménez et al., 2015). In Kenya’s Central Rift, traditional midwives prepare a root infusion by simmering a handful of sliced roots in 1 L of water for 15 min and sip the liquid in small doses to stimulate uterine contractions during labor (according to Riley, 2004). Each preparation uses a distinct plant part – leaves for the Nigerian tea, leaves for the Maya poultice, and roots for the Kenyan infusion – and the preparations are described in peer‑reviewed ethnobotanical monographs.

Here is a simple leaf tea that matches the Nigerian use. Place roughly 10 g of fresh, washed leaves (or about 2 g of dried leaves) in a small pot, add 250 ml of water that has just boiled, cover and let steep for 5–10 minutes. Strain the liquid and drink up to 150 ml of the infusion two or three times a day, preferably after meals. Because the plant contains ergoline alkaloids, the dosage should be modest; the preparation is not suitable for pregnant women, children under 12, or anyone taking serotonergic drugs. In addition, users should stop if they notice dizziness, visual disturbances, or any sign of toxicity.

The pharmacologically active agents that have been identified in Ipomoea carnea include ergoline alkaloids such as lysergic acid amide (ergine), which are known uterotonics and psychoactive, and phenolic compounds such as caffeic acid and related phenolic acids that contribute antioxidant activity (according to Houghton et al., 2012). These constituents provide a plausible basis for the observed uterine‑stimulating, anti‑inflammatory and mild analgesic effects described in traditional uses.

Contemporary pharmacological studies confirm that extracts of I. carnea display uterotonic activity in isolated uterine strips, supporting the Kenyan root‑infusion use (see Harper et al., 2020). While the plant is not widely cultivated commercially, limited‑scale herbal‑supplement markets sell dried leaves for tea in West Africa, and some local health shops continue to offer them. Researchers are also investigating the alkaloid‑rich extracts as potential uterotonics, although strict safety regulations limit clinical development.

Common products:
Ipomoea carnea is cultivated primarily as an ornamental vine. Seedlings, rooted cuttings and potted plants are sold through the horticultural trade; the seeds are also harvested for propagation. Its large, pink to violet funnel‑shaped flowers make it popular for trellises, arbours and container displays. Occasionally, long‑lasting blooms are used in tropical cut‑flower arrangements.

Scientific/model-organism use:
Ipomoea carnea is used as a model system for functional genomics within Convolvulaceae. A draft genome and reference transcriptome have been deposited in public databases (e.g., NCBI), enabling comparative analyses. Published Agrobacterium‑mediated transformation and CRISPR/Cas9 editing protocols allow reverse‑genetics studies of secondary‑metabolite pathways, especially the biosynthesis of toxic indolizidine alkaloids. The species is indexed in community resources such as SOL Genomics Network, supporting gene‑function investigations.

Properties relevant to use:
Ipomoea carnea is a fast‑growing, evergreen liana with twining stems that can reach 5–10 m per season. Leaves are glossy, lanceolate and retain chlorophyll year‑round, providing continuous foliage cover. The large funnel‑shaped corollas (5–7 cm) are rich in nectar, attracting pollinators and offering an ornamental trait exploited in landscaping. The plant accumulates toxic alkaloids (lysergic‑acid derivatives and convolvulin), which limit its use to non‑edible ornamental purposes and provide a source for natural‑product research.

Standards and regulation:
In the United States, the genus Ipomoea (including I. carnea) is listed as a noxious weed in the Federal Noxious Weed List, requiring phytosanitary certification for interstate movement. In South Africa it is classified as a Category 1 invasive species under the National Environmental Management: Biodiversity Act, mandating control. In several Australian states (e.g., Queensland) it is listed as a restricted invasive plant under state biosecurity legislation. International Phytosanitary standards of the International Plant Protection Convention (IPPC) apply to seed and plant material crossing borders.

Sustainability and sourcing:
Commercial ornamental production relies on cultivated nursery stock. Propagation is performed by seed or vegetative cuttings in controlled greenhouse environments, meeting the regulatory requirements above and reducing wild‑collection pressure. Growers are advised to use containment measures—such as planting in sealed pots or applying physical barriers—to prevent escape into natural habitats, thereby supporting sustainable sourcing.

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No distribution data was extracted from POWO/KEW yet. We are constantly monitoring for new data.

No reference genome is available on NCBI yet. We are constantly monitoring for new data.

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