Ageotropic

This results in an ageotropic (away from ground) horizontal nystagmus, which is stronger in the left-ear-down position (excitatory position).

Ageotropic growth is also displayed by shoots of 'lazy' mutants (e.g., ageotropica mutant of tomato and lazy mutants of rice, wheat, and maize), stolons or runners (e.g., strawberries), and underground stems or rhizomes (e.g. bamboos, quackgrass, and potato).