Western morning glory
NameWestern morning glory
Scientific NameCalystegia occidentalis
Common NamesWestern morning glory, Western bindweed
Plant FamilyConvolvulaceae
Natural HabitatFound in dry, open areas, chaparral, woodlands, and often disturbed sites across western North America, particularly in California.
Parts Usedwhole_plant
Medicinal Actionsastringent,anti-inflammatory
Traditional UsesWhile generally considered toxic and not recommended for internal use, some closely related bindweed species have been historically applied externally as poultices for minor skin irritations or wounds, suggesting potential mild astringent or anti-inflammatory effects. Internal use is strongly discouraged due to the presence of purgative and potentially toxic compounds.
Active ConstituentsResin glycosides
Preparation Methodspoultice
Contraindications & WarningsNot recommended for internal use due to potential toxicity and strong purgative effects. Avoid during pregnancy, lactation, and in children. May cause severe gastrointestinal upset and other adverse effects if ingested.
Cultivation NotesOften considered a persistent weed, it grows vigorously in a variety of soils, preferring dry to moist conditions and full sun to partial shade. It can be difficult to eradicate once established due to its extensive root system.
Raritycommon
Description
A perennial herbaceous vine characterized by its trailing or climbing habit, sagittate to hastate leaves, and pale yellow to cream, trumpet-shaped flowers. It typically blooms in spring and summer, often found sprawling over other vegetation or ground.
