Dreamleaf

Dreamleaf is an herb introduced in the lore in Mists of Pandaria but that was only made harvestable in Legion. It can be found in Val'sharah and the Valley of the Four Winds.^[1]

Dreamleaves are brilliantly green and paper-thin.^[1] The leaves of the plant are sticky.^[2] Only trained herbalists can extract the leaf from the plant without killing it.^[1]

Source

Dreamleaf can be found in Val'sharah. It can also be gathered by herbalists from the corpses of plants.
Sometimes the player will come across a Nightmare-corrupted variant, which will summon a Nightmare Creeper that drops additional dreamleaf.
Rewarded from Herbalism world quests in Val'sharah.
Can also be gathered from Fel-Encrusted Herbs on the Broken Shore.

Types

Dreamleaf: The common dreamleaf, green, paper-thin and sticky.
[Bushy Dreamleaf]: A variant of dreamleaf with more leaves than normal.
[Flourishing Dreamleaf]: A variant of dreamleaf able to bloom quicker than normal.
[Fragrant Dreamleaf]: A variant of dreamleaf emitting a fragrant and pleasant smell.
[Healthy Dreamleaf]: A variant of dreamleaf nearly pulsing with life.
[Iridescent Dreamleaf]: A variant of dreamleaf giving off a warm glow, it is pleasant to the touch.
[Lively Dreamleaf]: A variant of dreamleaf even livelier and more colorful than normal.