Slashing damage is a sub-type of physical damage.
Most slashing damage is caused by melee weapons; in particular, most swords, axes, and scythes along with certain daggers.
Known creatures with vulnerabilities to slashing damage
Aloe Husk, Aloe Seed, Crown of Thorns, Juniper Bark, Large Aloe Seed, Life Pod, Salving Cactus, Spined Aloe, Succulent Juniper, Reed Stalker, Thorn Stalker, Thorn Stalker Sprout, Ancient Oakheart, Oakheart, Pinesoul, Redwood Shepherd, Snarling Driftwood, Spirit Shepherd, Spirit Wood, Brooding Thorn, Burning Brush, Dragon Lilly, Dragon Moss, Thorn Wolf, Undergrowth