Bluegrass

Bluegrass is a Marine Vice Admiral and one of the nine that took part in the siege of Egghead.

Personality
Bluegrass seems to care about her subordinates to some extent, as she seized the chance to kill Jewelry Bonney to stop the latter’s Devil Fruit powers from affecting them.

Abilities and Powers
As a vice admiral, she has authority over lower-ranking Marines.

Devil Fruit
Bluegrass ate the Nori Nori no Mi, a Paramecia-type Devil Fruit that allows her to control anything she rides on. With this power, she used a Pacifista Mk III unit to intercept Bonney and attack her with a laser beam.

Haki
It was stated that all vice admirals possess Haki, so Bluegrass can also use the ability.

Egghead Arc
When the World Government had ordered to eliminate Vegapunk, Bluegrass led a Marine fleet to besiege the island of Egghead, alongside Jaygarcia Saturn, Kizaru, and eight other vice admirals.

After the Marines managed to make landfall at the island, Bonney was fighting them off and tried to run, before Bluegrass appeared in front of her on top of PX-III 046, having used her Devil Fruit power to control it before Atlas’ orders could reach it. Bluegrass then commanded the Pacifista to fire a laser beam, as Bonney could do nothing but stay still.