Abrotanella rostrata was created in 1996.
Utricularia rostrata was created in 2009.
Glyphostoma rostrata was created in 2001.
Marsdenia rostrata was created in 1810.
Rhingia rostrata was created in 1758.
Diota rostrata was created in 1860.
Microchela rostrata was created in 1994.
Clarkia rostrata was created in 1970.
The heliconia rostrata eater
Rostrata was closed as a hospital in 1962. It was converted into flats, and demolished in 1973.
Anguilla anguilla
Samuel Colliber has written: 'Columna rostrata' -- subject(s): Naval History, History
Not sure if this helps but there is Yucca Rostrata which is also known as Beaked or Big Bend Yucca and Yucca de smetiana also Yucca Brevifolia or Joshua Tree.