FLOWER IDENTIFICATION – Petals and stamens

Count the number of petals in each flower.  The 8 Monocot families all have flowers with 6 ‘petal-like’ tepals.  The 34  Eudicot families have flowers with 0,3, 4, 5, 6 or more petals but most of these Eudicot families have  4 or 5 petal flowers and to  identify these families count the number of stamens inside the flower as well as the number of petals. To learn more about petals and stamens click HERE

 

0 PETALS Euphorbia

3 PETALS Acanthus

4 PETALS

Cabbage (Brassicacae), Poppy, Willowherb, Olive, Heath, Plantain, Honeysuckle. Click HERE for the 4 PETAL key

5 PETALS

75% eudicot families have 5 petal flowers so click HERE for the    5 PETAL key 

6 or MORE PETALS

Loosestrife, Buttercup (anemones, celandine, aconite, delphiniums, ) Olive (Jasmine), Stonecrop(leeks) and double cherries and carnations

6 TEPALS

All Monocot families have 2 sets of 3 tepals

Alstroemeria, Colchicum, Lily, Iris, Orchid, Asphodel, Daffodil, Asparagus

4 PETAL KEY

For flowers with 4 petals look at the number of stamens in each flower

2 STAMENS 4 PETALS

Plantain (Speedwell, Toadflax), Poppy (Bleeding Heart), Olive (Lilac, Olive)

4 STAMENS 4 PETALS

Honeysuckle (Scabious, Teasel) Figwort(Buddleia)

6 STAMENS 4 PETALS

Cabbage (all species)

8 STAMENS 4 PETALS

Willowherb (Fuchsia, Evening Primrose, Great and Rosebay Willowherbs)

MANY STAMENS 4 PETALS

Poppy (all Poppies), Buttercup (Traveller’s Joy)

5 PETAL KEY

For flowers with 5 petals look at the number of stamens in each flower. The commonest arrangement is for each petal to have 1 stamen and in these families nearly all the species in the family will have the same arrangement. The next most common arrangement is for each petal to have 2 stamens per petal. Evolutionarily ‘primitive’ families such as the Buttercup have many stamens per petal.

2 STAMENS 5 PETALS

Mint (Salvia)

4 STAMENS 5 PETALS

Plantain (antirrhinum, penstemon, foxglove), Mint (non-salvia), Verbena, Figwort (common)

 

5 STAMENS 5 PETALS

Violet
Sea Lavender
Phlox
Primrose
Heath
Periwinkle
Borage
Convolvulus
Nightshade
Bellflower
Daisy
Umbellifer
Honeysuckle

10 STAMENS 5 PETALS

Saxifrage
Stonecrop
Pea
Geranium
Pink
Heath (Rhododendron)

MANY STAMENS 5 PETALS

Buttercup
Rose
St John’s-wort
Mallow
Rockrose