SFS Standard Summerborn Awakening [two-actions] Feat 9

Source Galactic Ancestries pg. 185
Frequency once per day
Prerequisites Summerborn Ryphorian
You tap into a primordial connection with the seasonal change your species bases much of its physiology on. You accelerate that change around you, tapping into primal powers to cause verdant growth nearby. For the next minute, each time you Step or Stride, you create difficult terrain in each square you leave during your movement that lasts for 10 minutes.

Traits

Plant:Vegetable creatures have the plant trait. They are distinct from normal plants. Magical effects with this trait manipulate or conjure plants or plant matter in some way. Effects that manipulate plants have no effect in an area with no plants.
Primal:This magic comes from the primal tradition, connecting to the natural world and instinct. Anything with this trait is magical.
Ryphorian:A creature with this trait is a member of the ryphorian ancestry. They are trimorphic elf-like humanoids with exceptional hearing whose appearance changes with the seasons. An ability with this trait can be used or selected only by ryphorians.