rare ne huge plant 

Variant arboreal regent (Bestiary 25)

Perception +33; low-light vision, tremorsense (precise) [object Object] feet

Languages Arboreal, Common, Sylvan; speak with plants

Skills Athletics +39, Intimidation +32, Nature +33, Stealth +24 (+34 in forests)

Str +10 Dex -1 Con +10 Int +0 Wis +6 Cha +5

AC  44; Fort +35, Ref +26, Will +33

HP 400; Weaknesses axe vulnerability, fire 20; Resistances bludgeoning 15, piercing 15

Axe Vulnerability The hivebound arboreal takes 15 additional damage from axes.

Swarm Host (aura, primal) 20 feet. The hivebound arboreal is host to a cloud of flying ants that swarm around it and gnaw at any creature within the aura. Non-arboreal creatures that enter the aura or start their turn within it take 7d8 piercing damage from the bites (DC 38 basic Fortitude save). If the hivebound arboreal fails a saving throw against an area effect, the biting ants die off, and the aura is deactivated until new ants swarm out at the end of the hivebound arboreal's next turn (or after 1 minute, if the hivebound arboreal critically fails it saving throw).

Speed 25 feet; freedom of movement

Melee [>] branch +36 (reach 15 feet), Damage 4d12+16 bludgeoning plus Improved Grab

Melee [>] root +36 (trip, reach 20 feet), Damage 4d8+16 bludgeoning

Ranged [>] rock +36 (brutal, range increment 120 feet), Damage 4d10+16 bludgeoning

Primal Innate Spells DC 41, attack +33; 9th horrid wilting, nature's enmity; 6th tangling creepers; 3rd earthbind (at will); 2nd entangle; Constant (4th) freedom of movement, speak with plants

Constrict [>] 4d6+16 bludgeoning, DC 41

Offered to the Swarm [F] Trigger The arboreal Grabs or Constricts a foe; Requirements The hivebound arboreal's swarm host is active; Effect The arboreal offers up the triggering creature to its ants to feed. The triggering creature takes damage as from the swarm host aura, but thereafter gains a +4 circumstance bonus to Escape the Grab until it Escapes.

Throw Rock [>]

Strength of Thousands #6: Shadows of the Ancients, page 52.