Thorny (CR 2)

Medium Plant
Alignment: Always neutral
Initiative: +2 (Dex); Senses: low-light vision, Listen +4, and Spot +4

AC: 17 (+2 Dex, +5 natural), touch 12, flat-footed 15
Hit Dice: 4d8+8 (26 hp)
Fort +6, Ref +3, Will +2
Speed: 50 ft.
Space: 5 ft./5 ft.
Base Attack +3; Grapple -2
Attack: Bite +5 melee, 1d3 thorns +0 melee
Full Attack: Bite +5 melee, 1d3 thorns +0 melee
Damage: Bite 1d6+2, thorns 1d6+1
Special Attacks/Actions: Thorns, trip
Abilities: Str 14, Dex 15, Con 14, Int 2, Wis 12, Cha 6
Special Qualities: Plant
Skills: Hide +0*, Listen +4, Move Silently +4, and Spot +4
Advancement: 5-9 HD (Medium-size); 10-12 HD (Large)
Climate/Terrain: Warm forest and underground
Organization: Solitary or pack (3-8)
Treasure/Possessions: None

Source: Converted

A thorny attacks with its bite, and if an opponent moves close enough, it will attack with its thorns.

Thorns (Ex): The thorny's body is covered with sharp wooden thorns. When biting, the thorny thrashes about, striking with 1d3 of them. An opponent hit by the thorny's thorn attack must make a Reflex save (DC 14) or have the thorn break off in his or her flesh. A lodged thorn imposes a -1 circumstance penalty to attacks, saves, and checks. Removing the thorn deals 1d6 additional points of damage.

Trip (Ex): A thorny that hits with its bite attack can attempt to trip the opponent as a free action (see Trip) without making a touch attack or provoking an attack of opportunity. If the attempt fails, the opponent cannot react to trip the thorny.

Plant: Immune to poison, sleep, paralysis, stunning, and polymorphing. Not subject to critical hits and is immune to mind influencing attacks.

Skills: Thornies receive a +4 racial bonus to Hide, Listen, Move Silently, and Spot checks. *They receive a +12 bonus to Hide checks when in a swampy or forested area.

A thorny resembles a man-sized dog made of wood and leaves and other vegetable matter. Their bodies are covered in sharp thorns.

Thornies are the pets and companions of the vegepygmies. Sages are unsure of the thornies exact origin, but are certain they are not created by the vegepygmies, as the tribes as a whole do not have the Intelligence or technology to do so.

Thornies were first mentioned in the 1e MM II (Gary Gygax, 1983).