It means the species of the plant. Example: Mitragyna speciosa or Kratom.
Clarkia speciosa was created in 1953.
Guettarda speciosa was created in 1753.
Carpophthoromyia speciosa was created in 1984.
Gemmula speciosa was created in 1842.
Chrysomantis speciosa was created in 1915.
Ungnadia speciosa was created in 1835.
Mythimna speciosa was created in 1991.
Oenothera speciosa was created in 1821.
Chloromyia speciosa was created in 1834.
Aquamarina speciosa was created in 1996.
Oreina speciosa was created in 1767.
Catalpa speciosa is the Latin name for the Northern Catalpa