Calystegia ( bindweed, false bindweed, or morning glory) is a genus of about 25 species of 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 plant or herbaceous perennial plant twining growing 1–5 m tall, with spirally arranged leaves. The 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 Locule.
Some of the species, notably Calystegia sepium and C. silvatica, are problematic , which can swamp other more valuable plants by climbing over them, but some are also deliberately grown for their attractive .
Calystegia species are eaten by the of some Lepidoptera species including Bedellia somnulentella (recorded on C. sepium) and small angle shades.
The name is derived from two Greek words κάλυξ ( kálux) "cup", and στέγη ( stégē) "a covering", meaning "covering cup",[ [1].: Merriam-Webster dictionary:Calystegia] ] this refers to the large bracts that cover the sepals.
Species
The following species are recognised in the genus
Calystegia:
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Calystegia affinis
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Calystegia atriplicifolia – nightblooming false bindweed
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Calystegia binghamiae
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Calystegia brummittii
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Calystegia catesbiana – Catesby's false bindweed
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Calystegia collina – Coast Range false bindweed
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Calystegia felix
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Calystegia hederacea – Japanese false bindweed
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Calystegia × howittiorum
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Calystegia × krauseana
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Calystegia longipes – Paiute false bindweed, plateau morning glory
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Calystegia × lucana
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Calystegia macaunii – Macoun's false bindweed
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Calystegia macrostegia – island false bindweed
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Calystegia malacophylla – sierra false bindweed
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Calystegia marginata – small-flowered white bindweed New Zealand
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Calystegia × melnikovae
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Calystegia occidentalis – chaparral false bindweed
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Calystegia peirsonii – Peirson's false bindweed
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Calystegia pellita – hairy false bindweed
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Calystegia pubescens
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Calystegia × pulchra – hairy bindweed
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Calystegia purpurata – Pacific false bindweed
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Calystegia × scania
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Calystegia sepium – large bindweed, hedge bindweed, bearbind, hedgebell (type species)
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Calystegia silvatica – great bindweed, shortstalk bindweed
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Calystegia soldanella – sea bindweed, seashore false bindweed, beach morning glory
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Calystegia spithamaea – low false bindweed, upright bindweed
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Calystegia stebbinsii – Stebbins' false bindweed, Stebbins' morning glory
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Calystegia subacaulis – hillside false bindweed
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Calystegia tuguriorum – New Zealand bindweed, pōuwhiwhi, pōwhiwhi, rarotawake
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Calystegia vanzuukiae
File:DSCM1934_Helix_Zaunwinde.jpg
File:Flore des serres et des jardins de l'Europe (8595873042).jpg| Calystegia sepium (van Houtte, L., 1853)
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