Merremia tuberosa (L.) Rendle
IUCN
NCBI
EOL Text
Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 8
Species With Barcodes: 1
United States
Rounded National Status Rank: NNA - Not Applicable
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| Rights holder/Author | NatureServe |
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Rounded Global Status Rank: G5 - Secure
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | NatureServe |
| Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Merremia+tuberosa |
United States
Origin: Exotic
Regularity: Regularly occurring
Currently: Unknown/Undetermined
Confidence: Confident
| License | http://creativecommons.org/licenses/by-nc/3.0/ |
| Rights holder/Author | NatureServe |
| Source | http://explorer.natureserve.org/servlet/NatureServe?searchName=Merremia+tuberosa |
Distribución: Planta ornamental, a veces naturalizada en áreas alteradas. También en St. Croix y St. John. Nativa de América tropical pero se encuentra ampliamente distribuida a través de los trópicos.
Distribution: Ornamental plant, sometimes naturalized in disturbed areas. Also on St. Croix and St. John. Native to tropical America but found widely distributed throughout the tropics.
Merremia tuberosa (L.) Rendle
BASÓNIMO: Ipomoea tuberosa L.
Bejuco leñoso, trepador voluble de 10-15 m de largo, con abundante látex lechoso. Tallos gruesos, cilíndricos, glabros. Hojas alternas; láminas simples, 7-12 × 6-11 cm, 7-palmatilobadas, los lóbulos, elípticos, largamente acuminados en el ápice, la base cordiforme, los márgenes revolutos, levemente sinuados; haz verde obscuro poco lustroso, glabro, con la nervación hundida; envés verde pálido, opaco, glabro o puberulento, con la nervación amarillenta, prominente; pecíolos tan largo como la lámina, cilíndricos, glabros o puberulentos. Flores funcionalmente unisexuales, solitarias o en dicasios simples. Cáliz verde amarillento, los sépalos desiguales, 2-3 cm de largo, carnosos, acrescentes y lignecentes una vez formado el fruto; corola amarilla, infundibuliforme, 4-5 cm de largo, el limbo 4-5 cm de diámetro; estambres exertos, las anteras blancas; estigma bilobado, verde, exerto. Cápsulas ovoides, abriendo irregularmente, 1.5-2.5 cm de largo, marrón claro, con los sépalos persistentes y acrescentes en la base; semillas 4 por fruto, negras, obtusamente trigonas, 1-1.5 cm de largo, aterciopeladas.
Fenología: Florece de octubre a diciembre y fructifica de noviembre a marzo.
Estatus: Exótica, cultivada y naturalizada, poco común.
Especimenes Estudiados: Acevedo-Rdgz., P. 5352; Liogier, A.H. 31166.
Merremia tuberosa (L.) Rendle in Dyer, Fl. Trop. Afr. 4: 104. 1905.
Basionym: Ipomoea tuberosa L.
Woody vine, climbing, twining, 10-15 m in length, with abundant milky latex. Stems thick, cylindrical, glabrous. Leaves alternate; blades simple, 7-12 × 6-11 cm, 7-palmatilobed, the lobes elliptical, long-acuminate at the apex, the base cordiform, the margins revolute, slightly sinuate; upper surface dark green, slightly shiny, glabrous, with the venation sunken; lower surface pale green, dull, glabrous or puberulous, with the venation yellowish, prominent; petioles as long as the blade, cylindrical, glabrous or puberulous. Flowers functionally unisexual, solitary or in simple dichasia. Calyx yellowish green, the sepals unequal, 2-3 cm long, fleshy, accrescent and woody once the fruit is formed; corolla yellow, infundibuliform, 4-5 cm long, the limb 4-5 cm in diameter; stamens exserted, the anthers white; stigma bilobed, green, exserted. Capsules ovoid, opening irregularly, 1.5-2.5 cm long, light brown, with the sepals persistent and accrescent at the base; seeds 4 per fruit, black, obtusely trigonal, 1-1.5 cm long, velvety.
Phenology: Flowering from October to December and fruiting from November to March.
Status: Exotic, cultivated and naturalized, uncommon.
Selected Specimens Examined: Acevedo-Rdgz., P. 5352; Liogier, A.H. 31166.
The following is a representative barcode sequence, the centroid of all available sequences for this species.