Also see the script generated page of flowers

Sunflower
Rarity: Tin (Green)

Daisy
Rarity: Tin (Green)

Poppy
Rarity: Tin (Green)

Gallic Rose
Rarity: Bronze (Yellow)

Milk Thistle
Rarity: Bronze (Yellow)

Marigold
Rarity: Bronze (Yellow)

Camellia
Rarity: Mithril (Cyan)

Royal Poinciana
Rarity: Mithril (Cyan)

Morning Glory
Rarity: Mithril (Cyan)

Pincushion
Rarity: Adamantium (Red)

Gazania
Rarity: Adamantium (Red)

Black Lotus
Rarity: Diamond (Light Blue)

Chinese Pink Carnation
Rarity: Tin (Green)

Common Snapdragon
Rarity: Tin (Green)

Large White Petunia
Rarity: Tin (Green)

Spotted St. John's Wort
Rarity: Bronze (Yellow)

Fringed Iris
Rarity: Mithril (Cyan)

Purple Passionflower
Rarity: Adamantium (Red)