The Collaborative International Dictionary
Loof \Loof\ (l[=oo]f), n. (Bot.) The spongelike fibers of the fruit of a cucurbitaceous plant ( Luffa [AE]gyptiaca); called also vegetable sponge.
Towel \Tow"el\, n. [OE. towaille, towail, F. touaille, LL. toacula, of Teutonic origin; cf. OHG. dwahila, swahilla, G. zwehle, fr. OHG. dwahan to wash; akin to D. dwaal a towel, AS. [thorn]we['a]n to wash, OS. thwahan, Icel. [thorn]v[=a], Sw. tv[*a], Dan. toe, Goth. [thorn]wahan. Cf. Doily.] A cloth used for wiping, especially one used for drying anything wet, as the person after a bath.
Towel gourd (Bot.), the fruit of the cucurbitaceous plant Luffa [AE]gyptiaca; also, the plant itself. The fruit is very fibrous, and, when separated from its rind and seeds, is used as a sponge or towel. Called also Egyptian bath sponge, and dishcloth.
Wikipedia
Luffa aegyptiaca, sponge gourd, Egyptian cucumber, and also known as Vietnamese luffa, for Vietnam is its native habitat , is a species of Luffa grown for its fruit. The plant is an annual vine, native to South Asia and Southeast Asia.It is known as Awmpawng in Mizo and Bhûl'' (ভোল'') in Assamese.