althaea

noun

al·​thaea al-ˈthē-ə 

1

capitalized : a genus of Old World herbs of the mallow family that have terminal spikelike clusters of showy flowers and include the hollyhock and marshmallow

2

or althea : the dried root of the marshmallow deprived of its brown corky layer and small roots and used as a demulcent and emollient

called also marshmallow root