Calystegia silvatica subsp. disjuncta
Large bindweed, Large Bindweed
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Family: Convolvulaceae · Type: Herb · Not Native
Calystegia silvatica subsp. disjuncta (Large bindweed) is a non-native California herb in the Convolvulaceae family, recognized by distinctive large flowers and climbing habit.
Large bindweed is a naturalized perennial herb found in northern and central coastal California in disturbed places at elevations below 50 meters. Flowering with white flowers 55 to 75 millimeters long, this climbing vine has a striking trumpet-shaped bloom emerging from distinctive sac-like bracts that completely hide the calyx. Growing up to 6 meters in length, it spreads through an underground rhizome with flexible, climbing stems. Its leaves are distinctively lobed, typically 5 to 12 centimeters wide, emerging along the graceful climbing stems. When in flower, the plant creates dramatic white blossoms that stand out in disturbed landscapes.
Identification and appearance
Key characters: 7 sympatric species; distinctive large flowers and climbing habit
Habitat and range
Habitat: Disturbed places
Elevation: < 50 m
Outside California: to British Columbia, native to western Mediterranean
How to tell it apart
vs Convolvulus: Convolvulus has smaller flowers with sharply pointed stigma lobes; Calystegia stigma lobes are blunt.; vs Ipomoea: Ipomoea stigma is a single rounded knob; Calystegia stigma has two distinct flattened lobes.; vs Datura: Datura flowers are upright with pleated edges; Calystegia flowers are smooth funnels.; vs Abronia: Abronia has clusters of small tubular flowers; Calystegia has single large funnel flowers.; vs Oenothera: Oenothera has four separate petals; Calystegia petals are fused into continuous funnel.
Frequently asked questions
Is Calystegia silvatica subsp. disjuncta native to California?
No. Calystegia silvatica subsp. disjuncta is not native to California (recorded as not native).
What plant family does Calystegia silvatica subsp. disjuncta belong to?
Calystegia silvatica subsp. disjuncta is in the Convolvulaceae family, genus Calystegia.
What habitat does Calystegia silvatica subsp. disjuncta grow in?
Calystegia silvatica subsp. disjuncta grows in Disturbed places.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CalPhotos
Last updated 2026-10-07
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.