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Calystegia

Calystegia
Calystegia sepium
Calystegia soldanella
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Solanales
Family: Convolvulaceae
Tribe: Convolvuleae
Genus: Calystegia
R.Br.[1][2]
Species

See text

Calystegia (bindweed, false bindweed, or morning glory) is a genus of about 25 species of flowering plants in the bindweed family Convolvulaceae. The genus has a cosmopolitan distribution in temperate and subtropical regions, but with half of the species endemic to California. They are annual or herbaceous perennial twining vines growing 1–5 m tall, with spirally arranged leaves. The flowers are trumpet-shaped, 3–10 cm diameter, white or pink, with (in most species) a sometimes inflated basal epicalyx.

The genus bears much similarity to a related genus Convolvulus, and is sometimes combined with it; it is distinguished primarily by the pollen being smooth, and in the ovary being unilocular.

Some of the species, notably Calystegia sepium and C. silvatica, are problematic weeds, which can swamp other more valuable plants by climbing over them, but some are also deliberately grown for their attractive flowers.

Calystegia species are eaten by the larvae of some Lepidoptera species including Bedellia somnulentella (recorded on C. sepium) and small angle shades.

The name is derived from two Greek words kalyx or kalux, "cup", and stege, "a covering", meaning "a covering cup",[3] this refers to the large bracts that cover the sepals.[4]

  1. ^ Cite error: The named reference IPNI was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Brown was invoked but never defined (see the help page).
  3. ^ [1].: Merriam-Webster dictionary:Calystegia]
  4. ^ Reader's Digest Field Guide to the Wild Flowers of Britain. Reader's Digest. 1981. p. 251. ISBN 978-0-276-00217-5.

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