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Ipomoea batatas

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The flowers from

The leaves by Sarath Rajapakshe,

Author:  Jean B.A:P. de M. de Lamarck, 1793
Origin:  Belize, Colombia, Costa Rica, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panamá, Venezuela
Soil:  Mix
Water:  Maximum
Sun:  Medium
Thickness:  10 Centimetres
Height:  4 Meters
Flower:  Pink
Propagate:  Seeds/Cuttings
Names:  Sweet potato, Boniato, Kumara, Camote, Sødekartoffel
Synonyms:  Convolvulus batatas Linnaeus, 1753.
- and around 60 others, see below....

This Convolvulaceae was given this name by Jean Baptiste Antoine Pierre de Monnet de Lamarck in 1792, and originates from the central part of America. Give it a well-drained soil, keep it moist and keep it out of the worst sun. The turnip will grow to ten centimetres in diameter, 20 centimetres in length, the vines op to four meters. The flowers are pink, and it can be reproduced by cuttings as well as by seeds.

If you really want to know: Purdue University! 

Unfortunately, I lost the first plant, which isn't that unusually. After a couple of years, it lost the caudex, and it doesn't seem like it will form a new. A known "error" by collectors, it seems to live only one or two years, then it needs to be replaced by a new bulb. It can be renewed by stem cuttings. The "potatoes" will only form under ground.

The generic name Ipomoea is derived from the Greek ἴψ, ἰπός; íps, ipós, meaning 'woodworm', and ὅμοιος; hómoios, meaning 'resembling'. It referring to their twining habit.  The species name is the local name in Haiti, which later have been used in several other languages.

Batatas batatas (L.) H.Karst.
Batatas betacea Lindl.
Batatas edulis (Thunb.) Choisy
Batatas wallii C.Morren
Batatas xanthorhiza Bojer
Convolvulus attenuatus M.Martens & Galeotti
Convolvulus batata Vell.
Convolvulus chrysorrhizus Sol. ex G.Forst.
Convolvulus edulis Vell.
Convolvulus edulis Thunb.
Convolvulus esculentus Salisb.
Convolvulus platanifolius Vahl
Convolvulus septangularis Steud.
Convolvulus tuberifer Steud.
Convolvulus tuberosus Vell.
Convolvulus tuxtlensis Sessé & Moc.
Convolvulus variabilis Cham. & Schltdl.
Convolvulus varius Vell.
Ipomoea apiculata M.Martens & Galeotti
Ipomoea batatas var. apiculata (M.Martens & Galeotti) J.A.McDonald & D.F.Austin
Ipomoea batatas var. batatas
Ipomoea batatas var. dissoluta Kuntze
Ipomoea batatas var. erythrorrhiza (Voigt) M.R.Almeida
Ipomoea batatas var. fastigiata (Sweet) Kuntze
Ipomoea batatas var. leucorrhiza Griseb.
Ipomoea batatas var. leucorrhiza (Voigt) M.R.Almeida
Ipomoea batatas var. porphyrorhiza Griseb.
Ipomoea batatas f. trifida Moldenke
Ipomoea catesbaei G.Mey.
Ipomoea chrysorrhiza Hook.f.
Ipomoea confertiflora Standl.
Ipomoea davidsoniae Standl.
Ipomoea edulis Niederl.
Ipomoea edulis (Thunb.) Makino
Ipomoea fastigiata Sweet
Ipomoea fastigiata var. ciliata Huber
Ipomoea indica var. variabilis (Cham. & Schltdl.) L.O.Williams
Ipomoea mucronata Schery
Ipomoea platanifolia (Vahl) Roem. & Schult.
Ipomoea purpusii House
Ipomoea tabascana J.A.McDonald & D.F.Austin
Ipomoea tiliacea var. merremioides Fosberg
Ipomoea tiliacea var. smithii Fosberg
Ipomoea variabilis (Cham. & Schltdl.) Choisy
Ipomoea villosa var. genuina Hallier f.
Ipomoea vulsa House
Ipomoea wallii (C.Morren) Godm. & Salvin
Pharbitis villosa (Ruiz & Pav.) G.Don
Dioscorea cylindrica Burm.f.