Kalmar "Apios" kalma ce ta ilmin halitta kuma tana nufin jinsin tsire-tsire na tsire-tsire a cikin dangin legume (Fabaceae) waɗanda suka kasance a Arewacin Amirka. Mafi sanannun jinsuna a cikin wannan jinsin shine Apios americana, wanda aka fi sani da gyada ko dankalin Indiya. Kalmar "Apios" ta samo asali ne daga kalmar Helenanci "apios," wanda ke nufin "mai siffar pear."
