Morning Glories, Sweet Potato
Ipomoea tricolor-1.jpg
Weediness:Some species are very weedy

The genus Ipomoea, with over 500 species, is the largest genus in the family Convolvulaceae. The genus occurs throughout the tropical and subtropical regions of the world, and comprises annual and perennial herbaceous plants, viness, shrubs and small trees; most of the species are twining climbing plants. Many species are known as morning glory, a name shared with some other related genera.

The genus includes important food crops (sweet potato and water spinach) and Ipomoea violacea, source of the Mexican psychedelic drug, tlitliltzin. Species and cultivars of Ipomoea grown as morning glory are popular in gardens for their often stunning flowers.


Flowers are regular and bisexual, with 5 sepals and a funnelform corolla with 5 lobes and stripes. The 5 stamens sit low in the tube, 1 style. The flower buds are "pleated", and open by untwisting. The fruit is a dry 4-6 valved capsule, containing as many seeds. Foliage is alternate, simple or compound. Most if not all temperate species are twining vines, with the stems containing a milky juice.

Growing ConditionsEdit

Most species require full sun.

Selected SpeciesEdit


Seeds must be soaked before planting.

Pests and DiseasesEdit

Leaf Spots

  • Alternaria
  • Cercospora abamensis
  • Cercospora ipomoeae
  • Cercospora viridula


  • Southern Blight


Stem Rots

Charcoal Rots


  • Vermicularia ipomoearum


  • Albugo ipomoeae-panduratae
  • Coleosporium ipomoeae (Alternate hosts in Pinus)
  • Puccinia crassipes

White Rusts Root Knot









Ipomoea species are used as food plants by the larvae of some Lepidoptera species - see w:list of Lepidoptera which feed on Ipomoea.


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