n gargantuan dragon plant 

Perception +28; darkvision, tremorsense (imprecise) 60 feet

Languages Arboreal, Common, Sylvan, Terran; speak with plants

Skills Acrobatics +27, Athletics +33, Nature +29, Stealth +29, Survival +30

Str +9 Dex +5 Con +9 Int +3 Wis +6 Cha +6

AC  39; Fort +31, Ref +25, Will +28

HP 310; Immunities poison, paralyzed, sleep, stunned; Weaknesses fire 15

Speed 30 feet, fly 80 feet; pass without trace

Melee [>] jaws +33 (magical, reach 15 feet), Damage 3d12+17 piercing plus Improved Grab

Melee [>] claw +33 (agile, magical, reach 15 feet), Damage 3d8+17 slashing

Melee [>] tail +33 (magical, reach 20 feet), Damage 3d10+17 bludgeoning

Primal Innate Spells DC 34, attack +26; 8th charm (plant creatures only); 7th wall of thorns; 6th tangling creepers; Constant (4th) speak with plants; (1st) pass

Stoutaern Breath [>>] (conjuration, earth, primal) The zomok blasts forth a 60-foot cone of earth and gravel, dealing 17d6 bludgeoning damage (DC 34 basic Reflex save); prone creatures take a –2 circumstance penalty to this saving throw. Creatures touching the ground that fail their saves take a 10-foot circumstance penalty to their Speeds and are restrained (Escape DC 34) on a critical failure. The zomok can't use Stoutaern Breath again for 1d4 rounds. The bodies of creatures slain by Stoutaern Breath instantly decompose and are destroyed—they can be restored to life only by a 7th-level or higher spell or ritual that restores life. The creature's equipment is unharmed but buried under 5 feet of earth.

Forest Step [>] (conjuration, healing, necromancy, primal, teleportation) Frequency three times per day; Effect The zomok teleports itself with the effects of a 5th-level dimension door spell, but the zomok must begin and end the teleportation effect in forest terrain. The zomok regains 10d10 Hit Points during this teleportation. Creatures swallowed by the zomok are left behind. The zomok can't use Forest Step again for 1d6+1 rounds.

Swallow Whole [>] (attack) Huge, 3d12+9 bludgeoning, Rupture 35.

Trample [>>>] Huge or smaller, tail, DC 32

Bestiary 2, page 303.