Med. Cat Herbs

Alder Bark

The bark is used to treat cats who get toothaches, and the pain may heal.

Borage Leaves

Small plants with pink or blue flowers and hairy leaves. When it is chewed and eaten by nursing queens, it produces better milk. It also treats fevers. Can be easily identified by its star shaped flowers.

Burdock Root

Tall stemmed thistle with a sharp smell and dark leaves. When dug up and washed off, it is chewed into a pulp, and put on wounds inflicted by rats to keep them from becoming infected. Can also be used on infected rat bites to lessen and heal the pain.

Catmint/Catnip

A leafy and delicious-smelling plant. They are rarely found in the wild, mostly found in Twoleg gardens. Best remedy for the deadly greencough, which kits and elders usually catch in the season of leaf-bare.

Celandine

This herb can be used to soothe the eyes if ever damanged.

Chamomile

This herb can be used to strengthen the heart and soothe the mind.

Chervil

A sweet smelling plant with large, spreading, leafy,fernlike leaves and small white flowers.^[1] The juice of the leaves can be used for infected wounds, and chewing the root also helps with bellyache.

Chickweed

Like catmint/catnip, it can be used to treat greencough.

Cobwebs

Very common in the forest, just be careful not to bring the spider along with you! Put it on a wound to soak up and stop (or slow) the bleeding. It may also be used to bind broken bones.

Coltsfoot

A flowering, dandelion-like plant with yellow or white flowers. The leaves are chewed into a pulp, and given to cats with difficulty breathing or a cough. It also can be used to treat kitten-cough, as well as cracked or sore pads.

Comfrey

Large leaves and small, bell-shaped flowers, which range in color from pink, white, or purple. Its fat, black-colored roots, when chewed into a poultice, can be used to repair broken bones or to soothe wounds.

Daisy Leaf

Daisy Leaves are thick, dark green, oval shaped leaves. Chewed into a paste, it can help aching joints.

Dandelions

The white liquid inside the stem is used for bee stings. Its roots can also be chewed to act like poppy seeds.

Dock

Similar to sorrel, the leaves can be chewed up and applied to soothe scratches.

Dried Oak Leaf

Most readily available in autumn/leaf-fall, the leaves are stored in a dry place, and can stop infection when applied.

Feverfew

Small bush with flowers like a daisy. The leaves can be eaten to reduce body temperature, especially cats with fever or chills. Also heals aches and headaches.

Goldenrod

A tall, plant with bright, yellow flowers. When chewed into a poultice, it is good for healing wounds^[4].

Heather Flower 

It can be included in herbal mixtures, to make it easier to swallow^[5].

Honey

A tasteless (to cats, as mentioned in Eclipse), golden-colored liquid that is made by bees. While difficult to obtain without being stung, it is great for soothing infections, sore throats, or cats who have breathed smoke. Also helps cats swallow other medicine.

Horsetail

A tall, bristly-stemmed plant that grows in marshy areas, like ShadowClan's forest territory or the marshes near the island in the lake territories. The leaves can be chewed into a poultice, and applied to infected wounds to help treat them.

Juniper Berries

Juniper berries grow on a bush with dark green, spiky leaves. The berries are purple in color, and can soothe bellyaches, give strength, and help troubled breathing ^[source?]. It is also used to help calm cats. ^[6]

Lamb's Ear

Commonly found in the mountains, this herb gives a cat strength.

Lavender

A small, purple, flowering plant that cures fever and chills.

Mallow

The leaves are best collected at sunhigh, when they are dry. It soothes a cat's belly.

Marigold

A low-growing flower that is bright orange or yellow in color. The petals or leaves can be chewed into a pulp and applied to wounds as a poultice to stop infection ^[7]. It could be used to treat rat bites, but it's sometimes not strong enough.

Mouse Bile

Extracted from the mouse. The only remedy for ticks, mouse bile is foul smelling, and is stored in moss. When dabbed on a tick, the tick falls off. Smell can be masked by wild garlic, or by washing paws in running water. If accidentally swallowed, can leave a horrible taste in mouth for days. Medicine cats always have to remember to wash their paws in a body of water after using mouse bile.

Nettle Seed 

Like yarrow, can be used if a cat has swallowed poison.

Parsley 

Stops a queen from producing milk if her kits die or don't need milk anymore.

Poppy Seeds

Small black seeds that are shaken out of a dried poppy flower head. They can put a cat to sleep, or soothe shock and distress, but is not recommended to nursing queens. They are given by wetting the paw, pressing on them, causing them to stick to the paw, and then having the sick or injured cat lick them off. Another method is to place them on a leaf, and have the sick or injured cat lick them off from there. They also help soothe pain ^[4].

Ragwort Leaves

Crushed and mixed into a poultice with juniper berries, it can help aching joints. It can also be used to keep a cat's strength up.^[8]

Ragweed

Like lamb's ear, this herb, commonly found in the mountains, gives a cat strength.

Raspberry Leaves

An herb used in kittings.  It could be a painkiller, or to help stop bleeding during the kitting.

Rush

This herb is used to bind broken bones. It has long narrow leaves and lavender colored head stalks.

Stinging Nettle

The leaves, when applied to a wound, can bring down swelling. The spiny green seeds can be given to a cat who has been poisoned by crowfood, Twoleg waste, or other toxic objects.

Snakeroot

The best remedy for poison, especially for snake bites.

Tansy

The tansy plant has round, yellow leaves, and a very sweet and strong smell, making it good at disguising a cat's scent. It is used for curing coughs, but must be eaten in small doses.

Thyme

This herb can be eaten to calm nervousness, anxiety, and cats who are in shock.

Traveling Herbs 

Traveling Herbs consists of sorrel, daisy, chamomile and burnet. Chamomile strengthens hearts, and calms cats. The other herbs are unknown.

Watermint

A green, leafy plant found in streams or damp earth. Usually chewed into a pulp and fed to cats with suffering from a bellyache.

Wild Garlic

When rolled in, it can help prevent infection. Especially good for rat bites. Due to its strong smell, it is good at hiding the scent of a certain Clan, and disguising cats on raids.

Willow Bark

This bark serves as a painkiller.

Yarrow 

A flowering plant whose leaves can be made into a poultice, and applied to wounds to extract poison. Also will make a cat vomit. The ointment of yarrow can also be used to soften and help heal cracked paw pads.

Poisons

Nightshade 

Nightshade is extremely toxic to cats and twolegs, being capable of killing a full-grown human in under forty-five minutes.

Deathberries/Yew berries/Night Seeds

Main Article: Deathberries

Deathberries are an extremely poisonous species of red berries, and are known to Twolegs as yew berries.

Holly Berries 

Holly berries, while not as dangerous as deathberries, are still a danger to kits. 

Foxglove seeds

Foxglove seeds are known to be a dangerous medicine. While they can help the heart, they can easily cause paralysis and heart failure. They are often mistaken for poppy seeds. 

{via Warriors Wiki}