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
Pulmonaria officinalis pink at first, later turn to blue-purple during the anthesis, by changing the pH value inside of the petals. As a matter of fact the flowers contain a dye that belongs to the anthocyanins and change the color from red (acidic) to blue (alkaline). "Pulmonaria officinalis" is diploid and has the chromosome number 2n = 14. Flowering period extends from March through May and the seeds ripen from May to June. Pollination is granted by insects (entomophily) - mainly bees, bumblebees and butterflies - the spread of seeds over ants. The plant has been cultivated for centuries as a medicinal