Althaea (plant) rose water. "Pâte de guimauve" more closely resembles contemporary commercially available marshmallows, which no longer contain any actual marshmallow. The root's emulsifying property is used for cleaning Persian carpets in the Middle East. It is regarded as the best method to preserve the vibrancy of vegetable dyes used in coloring the carpet's wool. Althaea (plant) Althaea is a genus of 6–12 species of perennial herbs native to Europe, North Africa and western Asia. It includes "Althaea officinalis", also known as the marshmallow plant, whence the fluffy confection got its name. They are found on the banks of rivers and in
Veronica officinalis fields, meadows and gardens, where it is sometimes grown as an edible, or medicinal herb. The slightly bitter and astringent taste and tea-like smell of speedwell led to its use as a tea substitute in 19th-century France, where it was called "thé d'Europe", or "Europe tea." The French still use this term as a name for speedwell. Veronica officinalis Veronica officinalis (heath speedwell, common gypsyweed, common speedwell, or Paul's betony) is a species of flowering plant in the plantain family Plantaginaceae. It is native to Europe and western Asia. It has been introduced to North America and is widely naturalised