Blood: Elder sap or another tree sap.
Blood Leather: Reindeer Moss/Rock Tripe/Caribou Lichen
Bloodwort: Yarrow
Bread and Cheese Tree: Hawthorne.  Also known as: Whitethorn, Hazels,Gazels, Halves, Quickset, Albespyne, L'Epine Noble. The buds are called Ladies' Meat; the blossoms are known as May Flowers. The fruit are known as haws.  See Hawthorn
Sopewort: Soapwort/Bruisewort.  See Figwort and Comfrey and Daisy,Common
Burning Bush: Fraxinella, otherwise known as Bastard.  More commonly known >as False or White Dittany.
Candelmas Maiden: Snowdrop.  (What Snowdrop is, I haven't figured out,yet.)
Capon's Tail: Valerian.
Christ's Ladder:  Centaury, Centaury Gentian. Century. Red Centaury.Filwort. Centory.  or Feverwort
Queen of the Night:  Night Blooming Cereus.  AKA: Vanilla Cactus.Sweet-scented Cactus. Large-flowered Cactus, Deer-Horn Cactus
Cheeses:  Marsh Mallow
Chocolate Flower:  Wild Geranium
Christ's Eye:  Vervain Sage
Clear-eye:  Clary Sage
Click:  Goosegrass
Clot:  Great Mullein
Corpse Plant:  Indian Pipe.  (Actually a saphrophyte fungus)
Crowdy Kit:  Figwort
Cuddy's Lungs:  Great Mullein
Weed:  Ox-Eye Daisy
Daphne:  Laurel/Bay
Priest's Crown:  Dandelion leaves
Swine's Snout: Also Dandelion leaves.
Devil's Plaything:  Yarrow
Dew of the Sea: Rosemary
Dragon Wort: Bistort
Earth Smoke: Fumitory
Black Sampson: Echinacea.  Also sometimes known as (excuse the word)>Niggerhead.
Elf's Wort: Elecampane
Enchanter's Plant:  Vervain
Englishman's Foot:  Common Plantain
Erba Santa Maria:  Spearmint
Everlasting Friendship:  Goosegrass
Eye of the Day: Common Daisy
Eye of the Star: Horehound
Eye Root:  Goldenseal
Eyes:  Aster, Daisy, Eyebright, etc.  (any similar flower, it seams.)
Fairy Smoke: Indian Pipe
Felon Herb: Mugwort
Hair of Venus: Maidenhair Fern
Moonwort: and actual Fern. :)
Osmund the Waterman:  Royal Fern
Heart of Osmund: Also the Royal Fern
Black Maidenhair: Black Spleenwort (another fern)
Five Fingers:  Five-leaf grass or ginseng (I haven't narrowed this down yet)
Fox's Clote:  Burdock
Poor Man's Treacle:  Garlic
Crow's Foot: Wild Geranium
Dove's Foot:  Wild Geranium
Old-Maid's-Nightcap:  Wild Geranium
Shameface:  Wild Geranium
Man's Health:  Ginseng
God's Hair:  Hart's Tongue Fern
Golden Star: Avens
Gosling Wing: Goosegrass
Graveyard Dust: Mullein
Great Ox-eye:  Ox-eye Daisy
Hag's Taper: Great Mullein
Hagthorn: Hawthorn
Hare's Beard:  Great Mullein
Herb of Grace: Vervain
Hind's Tongue: Hart's Tongue Fern
Holy Herb: Yerba Santa
Holy Rope: Hemp Agrimony
Hook and Arn: Yerba Santa
Horse Tongue: Hart's Tongue Fern
Horse Hoof:  Coltsfoot
Innocense: Bluets
Jacob's Staff:  Great Mullein
Joy of the Mountain:  Marjoram
Jupiter's Staff: Great Mullein
King's Crown: Black Haw
Knight's Milfoil: Yarrow
Lad's Love: Southernwood
Lamb's Ears: Betony
Little Dragon: Tarragon
Love in Idleness: Pansy
Love Leaves: Burdock
Love Lies Bleeding: Amaranth or Anemone
Love Man:  Goosegrass
Love Parsley:  Lovage
Love Root:  Orris Root
Cucumber Tree: Magnolia
Maiden's Ruin: Southernwood
Master of the Woods:  Woodruff
May:  Black Haw
May Lily: Lily of the Valley
May Rose:  Black Haw
Maypops:  Passion Flower
Mistress of the Night: Tuberose
Torches: Great Mullein
Mutton Chops: Goosegrass
Nose Bleed: Yarrow
Tanner's Bark:  Common Oak
Old Man's Flannel: Great Mullein
Old Man's Pepper:  Yarrow
Oliver: Olive
Password: Primrose
Pucha-pat: Patchouli
Peter's Staff: Great Mullein
Cuckoo's Bread: Common Plantain
White Man's Foot: Common Plantain
Queen of the Meadow:  Meadowsweet
Queen of the Meadow Root:  Gravelroot
Ram's Head: American Valerian
Red Cockscomb:  Amaranth
Ring-o-bells: Bluebells
Robin-run-in-the-grass: Goosegrass
Clear Eye:  Clary Sage
See Bright: Clary Sage
Scaldhead: Blackberry
Seven Year's Love: Yarrow
Silver Bells: Black Haw
Sorcerer's Violet: Periwinkle
St. John's Herb: Hemp Agrimony.  (No, this is not St. John's Wort.)
St. John's Plant:  Mugwort (See last disclaimer)
Star Flower: Borage
Star of the Earth: Avens
Starweed: Chickweed
Sweethearts: (You guessed it)  Goosegrass
Tarragon: Mugwort
Tartar Root:  Ginseng
Thousand Weed: Yarrow
Thunder Plant:  House Leek
Tongue of Dog: Hound's Tongue
Unicorn Horn: True Unicorn Root
Wax Dolls: Fumitory
Weazel Snout:  Yellow Dead Nettles/Yellow Archangel
White: Ox-eye Daisy
White Wood: White Cinnamon
Witch's Asprin: White Willow/Willow Bark
Witch's Brier: Brier Hips