-K-
Kaempferia Galanga: Galangal
-L-
Lacris: Licorice
-M-
Mackerel Mint: Spearmint
-N-
Narcissus: Daffodil
-O-
Oatmeal: Oats
Kaphnos: Fumitory
Karan: Myrrh
Karcom: Saffron
Keckies: Hemlock
Kelp: Bladderwrack
Kenning Wort: Celandine
Key Flower: Cowslip
Key of Heaven: Cowslip
Kex: Hemlock
Kharkady: Hibiscus
Khus-Khus: Vetivert
Ki: Ti
Kif: Hemp
King Root: Bloodroot
Kinnikinnick: Uva Ursa
Kiss-Me-At-The-Garden-Gate: Pansy
Klamth Weed: St. John's Wort
Knight's Milfoil: Yarrow
Knit Back: Comfrey
Knitbone: Comfrey
Knotgrass: Knotweed
Knotted Marjoram: Marjoram
Knyghten: Yarrow
Ko: Sugar Cane
Krokos: Saffron
Kunkuma: Saffron
Ladder to Heaven: Lily of the Valley
Lady's Foxglove: Mullein
Ladies' Meat: Hawthorn
Ladies' Seal: Briony
Lad's Love: Southernwood
Lady Ellhorn: Elder
Ladykins: Mandrake
Lady of the Meadow: Meadowsweet
Lady of the Woods: Birch
Lady's Key: Cowslip
Lady's Laces: Dodder
Lady's Mantle: Yarrow
Lady's Seal: Solomon's Seal
Lady's Thistle: Thistle
Lama: Ebony
Lamb Mint: Spearmint
Lammint: Peppermint
Lapstones: Potato
Lattouce: Lettuce
Laurel: Bay
Laurier a'Appolon: Bay
Laurier Sauce: Bay
Lavose: Lovage
Leapord's Bane: Wolf's Bane
Leaf of Patrick, The: Plantain
Leather Jackets: Potato
Lemon Balsam: Lemon Balm
Lent Lily: Daffodil
Leontopodium: Lady's Mantle
Levant Salep: Orchid
Libanotis: Rosemary
Licourice: Licorice
Lignam aloes: Wood Aloes
Lignam sanctae crucis: Mistletoe
Lily Constancy: Lily of the Valley
Lime: Linden
Lime Tree: Linden
Ling: Heather
Link: Broom
Linseed: Flax
Lion's Foot: Lady's Mantle
Lion's Herb: Columbine
Lion's Mouth: Foxglove
Lion's Tooth: Dandelion
Lippe: Cowslip
Little Queen: Meadowsweet
Little Stepmother: Pansy
Liverleaf: Liverwort
Liver Lily: Blue Flag
Liverweed: Liverwort
Lizzy-Run-Up-The-Hedge: Ground Ivy
Llwyd y cwn: Horehound
Llygad y Dydd: Daisy
Lobeer: Bay
Lousewort: Wood Betony
Love Fruit: Orange
Love Herbs: Lovage
Love Idol: Pansy
Love-In-Idleness: Pansy
Love-Lies-Bleeding: Amaranth, Pansy
Love Rod: Lovage
Love Root: Lovage
Love Vine: Dodder
Love-Will: Datura
Loving Herbs: Lovage
Loving Idol: Pansy
Low John the Conqueror: Galangal
Lubestico: Lovage
Lucerne: Alfalfa
Luib na muc: Pimpernel
Lunary: Honesty
Lurk-In-The-Ditch: Pennyroyal
Lusmore: Foxglove
Lus na mbau side: Foxglove
Lycopod: Club Moss
Lycorys: Licorice
Lythrum: Loosestrife
Mad Apple: Datura
Madder's Cousin: Fragrant Bedstraw
Madherb: Datura
Mad Root: Briony
Madweed: Scullcap
Madwort: Alyssum
Magic Mushroom: Agaric
Maia: Banana
Maidenhair Fern: Maidenhair
Maid's Ruin: Southernwood
Maize: Corn
Male Lily: Lily of the Valley
Malicorio: Pomegranate
Mallaquetta Pepper: Grains of Paradise
Malum punicum: Pomegranate
Mandragen: Mandrake
Mandragor: Mandrake
Mandrake: May Apple
Manicon: Datura
Mannikin: Mandrake
Manzanilla: Chamomile
Maracoc: Passion Flower
Marian Thistle: Milk Thistle
Marigold of Peru: Sunflower
Marijuana: Hemp
Marjorlaine: Marjoram
Marrubium: Horehound
Marshmallow: Althea
Maruil: Horehound
Marybud: Marigold
Marygold: Marigold
Mary Gowles: Marigold
Master of the Woods: Woodruff
Masterwort: Angelica
Masticke: Mastic
Mate: Yerba Mate
Maudlinwort: Daisy
May: Hawthorn
Mayblossom: Hawthorn
May Bush: Hawthorn
Mayflower: Hawthorn
May Lily: Lily of the Valley
Maypops: Passion Flower
Maythen: Chamomile
Meadow Anemone: Anemone
Meadow Cabbage: Skunk Cabbage
Meadowwort: Meadowsweet
Meadsweet: Meadowsweet
Mealberry: Uva Ursa
Melia: Plumeria
Mecca Balsam: Balm of Gilead
Medicine Plant: Aloe
Meet-Me-In-The-Entry: Pansy
Melampode: Black Hellebore
Melequetta: Grains of Paradise
Melissa: Lemon Balm
Michaelmas: Aster
Milfoil: Yarrow
Militaris: Yarrow
Military Herb: Yarrow
Millefolium: Yarrow
Minarta: Avens
Miracle Herb: Comfrey
Mirra Balsam Odendron: Myrrh
Mismin: Spearmint
Misseltoe: Mistletoe
Mizquitl: Mesquite
Money Plant: Honesty
Monkshood: Wolf's Bane
Moonlight on the Grove: Jasmine
Moor Grass: Cinquefoil
Moose Elm: Slippery Elm
Mortification Root: Althea
Mother of the Herbs: Rue
Mother of the Wood: Sloe
Mountain Ash: Rowan
Mountain Balm: Yerba Santa
Mountain Box: Uva Ursa
Mountain Cranberry: Uva Ursa
Mountain Mint: Marjoram
Mountain Tea: Wintergreen
Mousquito Plant: Pennyroyal
Muggons: Mugwort
Mum: Chrysanthemum
Murphies: Potato
Musquash Root: Hemlock
Myrtle Flag: Calamus
Myrtle Grass: Calamus
Myrtle Sedge: Calamus
Nard: Lavender, Spikenard
Nardus: Lavender
Naughty Man: Mugwort
Naughty Man's Cheeries: Belladonna
Neckweede: Hemp
Nelka: Carnation
Nepeta: Catnip
Nidor: Fumitory
Nine Hooks: Lady's Mantle
Nine Joints: Knotweed
Ninety Knot: Knotweed
Nion: Ash
Nip: Catnip
Nirvara: Rice
Noble Laurel: Bay
Noble Yarrow: Yarrow
No Eyes: Potato
Nosebleed: Yarrow
Nurse Heal: Elecampane
Obeah Wood: Ebony
Ohe: Bamboo
Oingnum: Onion
Ofnokgi: Sumbul
Old Field Balsam: Life Everlasting
Old Gal: Elder
Old Lady: Elder
Old Man: Mugwort, Southernwood
Old Man Fennel: Mullein
Old Man's Pepper: Yarrow
Old Man's Mustard: Yarrow
Old Uncle Henry: Mugwort
Old Woman: Wormwood
Olena: Turmeric
Olibans: Frankincense
Olibanum: Frankincense
Olibanus: Frankincense
Olivier: Olive
Onyoun: Onion
Orange Mint: Orange Bergamont
Orange Root: Goldenseal
Oregon Grape Root: Oregon Grape
Organ Broth: Pennyroyal
Organs: Pennyroyal
Organ Tea: Pennyroyal
Ortiga ancha: Nettle
Osier: Willow
Ouchi: Sumbul
'Our Herb': Basil
Our Lady's Glove: Foxglove
Our Lady's Keys: Cowslip
Our Lady's Mint: Spearmint
Our Lady's Tears: Lily of the Valley
Oval Buchu: Buchu