旋花属属

下属物种

• 本属包括以下物种：
• 田旋花 Convolvulus arvensis
• 银灰旋花 Convolvulus ammannii
• 银旋花 Convolvulus cneorum
• 灌木旋花 Convolvulus fruticosus
• 鹰爪柴 Convolvulus gortschakovii
• Convolvulus lanatus
• Convolvulus laniger
• Convolvulus lanjouwii
• Convolvulus lanosus
• Convolvulus lanuginosus
• Convolvulus leiocalycinus
• Convolvulus leptocladus
• Convolvulus libanoticus
• 线叶旋花 Convolvulus lineatus
• 直立旋花 Convolvulus pseudocantabricus
• 蓝色岩旋花 Convolvulus sabatius
• 草坡旋花 Convolvulus steppicola
• 刺旋花 Convolvulus tragacanthoides
• 三色旋花 Convolvulus tricolor
• 黄河旋花 Convolvulus xanthopotamicus

Convolvulus is a genus of about 200 to 250 species of flowering plants in the bindweed family Convolvulaceae, with a cosmopolitan distribution; the Plants of the World Online database currently accepts 227 species and 12 natural hybrids. Common names include bindweed and morning glory; both are names shared with other closely related genera.

Taxonomy

The genus Calystegia, until recently widely accepted, has been shown to be genetically embedded within Convolvulus, and is now treated as a synonym of it by the Plants of the World Online database.

Description

They are annual or perennial herbaceous vines; a few species are woody shrubs. They grow to heights of 0.3–4 m scrambling through ground vegetation, shrubs and trees; the shrubby species (e.g. C. cneorum) growing to 0.5 m tall with a woody base. The leaves are spirally arranged, and the flowers trumpet-shaped, mostly white or pink, but blue, violet, purple, or yellow in some species.

Ecology

Many of the species are invasive weeds; but others are cultivated for their attractive flowers, while some are globally threatened.

Convolvulus species are used as food plants by the larvae of some Lepidoptera species, including the convolvulus hawk moth, the sweet potato leaf miner (Bedellia somnulentella) and the gem; the leaf miner Bucculatrix cantabricella feeds exclusively on C. cantabricus.