Crimson Nirnroot

Crimson Nirnroot, like its more common counterpart, does respawn. Also, when mixed with normal Nirnroot, the Crimson variant creates a potion with no less than 4 effects, since both roots have all their properties in common.

Locations

 * Blackreach - there are 40 that can be found, and this is the only region in which Crimson Nirnroot can be found. They will respawn over an undetermined period of time. (recommended - 1 week)
 * DWEMER CAVES- some can be found in varying dwemer caves and dungeuns scattered around.

Quests
Bringing 30 of them to Avrusa Sarethi for A Return To Your Roots.

Damage Health

 * Deathbell
 * Ectoplasm
 * Falmer Ear
 * Human Flesh
 * Human Heart
 * Imp Stool
 * Jarrin Root *
 * Nightshade
 * Nirnroot *
 * Red Mountain Flower
 * River Betty
 * Skeever Tail
 * Small Antlers
 * Troll Fat
 * Void Salts *

Damage Stamina

 * Blisterwort
 * Blue Butterfly Wing
 * Bone Meal
 * Canis Root
 * Cyrodilic Spadetail
 * Giant's Toe
 * Jarrin Root *
 * Nirnroot *
 * Rock Warbler Egg
 * Spider Egg

Invisibility

 * Chaurus Eggs
 * Ice Wraith Teeth
 * Luna Moth Wing
 * Nirnroot *
 * Vampire Dust

Resist Magic
* multiple effects
 * Bleeding Crown
 * Chicken's Egg
 * Hagraven Claw
 * Lavender
 * Nirnroot *
 * Tundra Cotton
 * Void Salts *