Canchalagua is a Spanish-derived common name for several plants. Canchalagua may refer to:
* ''
Schkuhria pinnata
''Schkuhria pinnata'', the canchalagua or dwarf Mexican marigold, is a small, dainty, pioneer annual herb of the family Asteraceae and widespread in the tropics. It is regarded as a naturalised weed with low ecological impact.
Reaching 30–60&nb ...
'', a plant in the sunflower family native to South America and used medicinally
* ''
Zeltnera venusta'', a plant in the gentian family native to North America
{{Plant common name