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Photos of European Plants acc. to the Flower Anatomy:   4 petals
 
Other flower anatomy
 
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Radial symmetrical flowers with 4 petals have among others the Crucifers (Brassicaceae), many Bedstraw Fam. (Rubiaceae), Poppy Fam. (Papaveraceae), Ashe Fam. (Oleaceae), the Daphne Fam. (Thymelaceae), Dogwood Fam. (Cornaceae), Cytine Fam. (Rafflesiaceae). Only some of the genus or species of other families have also 4 petals, e.g. of the Figworts (Scrophulariaceae) the Speedwell Fam. (Veronica) and Mullein Fam. (Verbascum), and few species of the Gentian Fam. (Gentianaceae), Teasel Fam. (Dipsacaceae), Buckthorn Fam. (Rhamnaceae), Heather Fam. (Ericaceae), Stonecrop Fam. (Crassulaceae), Spindle Fam. (Celastraceae), Sumach Fam. (Anacardiaceae), Sea-Buckthorn Fam. (Elaeagnaceae), Holly Fam. (Aquifoliaceae), Butterfly-Bushe Fam. (Buddlejaceae). Few Moehringia species of the Campion family (Caryophyllaceae) have also 4 instead of 5 petals.
 

Preview pict. Species, Subspecies, or Variety  Family  Photos from
Adenostyles alpina / Alpine Plantain, Hedge Garlic Asteraceae / Composite Fam. A HR
Aethionema / Candytuft (6) Brassicaceae / Crucifers A D F GR HR I Rho Sam
Alliaria petiolata / Garlic Mustard Brassicaceae / Crucifers D F
Alyssoides utriculata / Tinkerbells Brassicaceae / Crucifers HR
Alyssum / Alison,Madwort (14) Brassicaceae / Crucifers A Chi D F GR HR I Kre Les Rho Sam
Arabidopsis / Rock-Cress (6) Brassicaceae / Crucifers A Cor D F HR S
Arabis / Rock-Cress (20) Brassicaceae / Crucifers
Arabis alpina subsp. alpina / Alpine Rock-Cress Brassicaceae / Crucifers A Cor D E HR I Siz
Arabis alpina subsp. caucasica / Wall Rock-Cress Brassicaceae / Crucifers D HR Pal Rho
Arabis auriculata / Annual Rock-Cress Brassicaceae / Crucifers D F GR
Arabis bellidifolia subsp. bellidifolia / Daisyleaf Rock-Cress Brassicaceae / Crucifers A Cor I
Arabis bellidifolia subsp. stellulata / Stellate Rock-Cress Brassicaceae / Crucifers A
Arabis ciliata / Rock-Cress Brassicaceae / Crucifers A HR I
Arabis collina / Rosy Cress Brassicaceae / Crucifers Cor GR
Arabis glabra / Tower Mustard Brassicaceae / Crucifers A D F I
Arabis hirsuta / Hairy Rock-Cress Brassicaceae / Crucifers A D F GR IRL
Arabis nemorensis / Gerard's Rock-Cress Brassicaceae / Crucifers D F HR
Arabis pauciflora / Few-Flowered Rock-Cress Brassicaceae / Crucifers D F I
Arabis procurrens / Running Rock-Cress Brassicaceae / Crucifers D
Arabis sagittata / Arrow-Leaved Rock-Cress Brassicaceae / Crucifers A D HR
Arabis scopoliana / Scopoli's Rock-Cress Brassicaceae / Crucifers HR
Arabis serpyllifolia / Thyme-Leaved Rock-Cress Brassicaceae / Crucifers F I
Arabis soyeri / Soyer's Rock-Cress Brassicaceae / Crucifers D
Arabis subcoriacea / Subcoriaceous Rock-Cress Brassicaceae / Crucifers A F
Arabis turrita / Tower Cress Brassicaceae / Crucifers A D E F HR
Arabis verna / Spring Rock-Cress Brassicaceae / Crucifers Chi E GR HR Rho
Arabis vochinensis / Compact Rock-Cress Brassicaceae / Crucifers D
Argemone mexicana / Mexican Prickly Poppy Papaveraceae / Poppy Fam. Pal
Armoracia rusticana / Horse Radish Brassicaceae / Crucifers A D
Asperula / Woodruff (10) Rubiaceae / Bedstraw Fam. A D E F HR SLO
Aubrieta deltoidea / Purple Rock Cress Brassicaceae / Crucifers Chi D GR Les Sam
Aucuba japonica / Gold Dust Plant Garryaceae / Aucuba Fam. D
Aurinia / Alison (3) Brassicaceae / Crucifers Chi D GR HR Sam
Barbarea / Winter Cress (7) Brassicaceae / Crucifers A Cor D F HR I
Berteroa / Alyssum (2) Brassicaceae / Crucifers D GR PL
Biscutella / Buckler Mustard (5) Brassicaceae / Crucifers A D E F GR HR I Kre Rho Sam
Brassica / Cabbage,Mustard (15) Brassicaceae / Crucifers Chi D E F GB GR HR I Kre Les NL Sam
Buddleja davidii / Butterfly Bush Scrophulariaceae / Figwort Fam. D F
Bunias / Warty Cabbage (2) Brassicaceae / Crucifers A D GR I Les Rho
Cakile maritima / Sea Rocket Brassicaceae / Crucifers D F GR IRL Les NL Rho S Zyp
Calepina irregularis / White Ball-Mustard Brassicaceae / Crucifers D F GR HR Les
Calluna vulgaris / Heather Ericaceae / Heather Fam. D E F I IRL
Camelina / Gold of Pleasure (3) Brassicaceae / Crucifers D F
Camphorosma annua / Annual Camphorherb Amaranthaceae / Amaranth Fam. A
Capsella / Shepherd's Purse (5) Brassicaceae / Crucifers D F GR I Rho S
Cardamine / Bitter-Cress,Cuckooflower (23) Brassicaceae / Crucifers A CH Cor D F GR HR I IRL Les Mal Rho Sam
Celastrus orbiculatus / Staff Vine Celastraceae / Spindle Fam. D
Cephalaria / Scabiosa (2) Caprifoliaceae / Honeysuckle Fam. A D E F GR HR
Chelidonium majus / Greater Celandine Papaveraceae / Poppy Fam. D F
Chorispora tenella / Crossflower Brassicaceae / Crucifers A
Chrysosplenium / Golden-Saxifrage (2) Saxifragaceae / Saxifrage Fam. A D F HR
Cicendia filiformis / Slender Cicendia, Yellow Centaury Gentianaceae / Gentian Fam. D
Circaea / Enchanter's Nightshade (4) Onagraceae / Willowherb Fam. A D I S
Clematis / Clematis (8) Ranunculaceae / Buttercup Fam. A Chi D F GR HR I
Clypeola jonthlaspi / Disk Cress Brassicaceae / Crucifers GR
Cochlearia / Scurvy-Grass (4) Brassicaceae / Crucifers D F IRL S
Coincya / Wallflower Cabbage (3) Brassicaceae / Crucifers D E F
Conringia / Hare's Ear,Mustard (2) Brassicaceae / Crucifers D I
Cornus / Dogwood (5) Cornaceae / Dogwood Fam. A D HR I S
Cotinus coggygria / Smoke Tree Anacardiaceae / Sumach Fam. GR HR I
Crambe maritima / Sea Kale Brassicaceae / Crucifers D NL S
Crassula helmsii / Swamp Stonecrop, New Zealand Pygmyweed Crassulaceae / Stonecrop Fam. D
Crucianella / Crosswort (2) Rubiaceae / Bedstraw Fam. Cor F GR Les
Cruciata / Crosswort (3) Rubiaceae / Bedstraw Fam. A Cor D F HR I
Cuscuta / Dodder (3) Convolvulaceae / Bindweed Fam. D Rho
Cytinus / Cytinus (2) Cytinaceae / Cytine Fam. Chi F I Kre Mal Rho Tun
Daphne / Daphne (10) Thymelaeaceae / Daphne Fam. A Cor D E F GR HR I Kre Mal SLO
Degenia velebitica / Velebit Degenia Brassicaceae / Crucifers D HR
Descurainia / Mustard (2) Brassicaceae / Crucifers D F
Diospyros kaki / Kaki Persimmon, Japanese Persimmon Ebenaceae / Ebony Fam. D HR I
Diplotaxis / Wall Rocket (3) Brassicaceae / Crucifers A D F GR HR I
Draba / Whitlowgrass (24) Brassicaceae / Crucifers A Cor D F GR I Kre Mal NL Rho Sam
Elaeagnus / Oleaster (2) Elaeagnaceae / Sea-Buckthorn Fam. A D F
Elatine alsinastrum / Whorled Waterwort Elatinaceae / Waterwort Fam. D
Epilobium / Willowherb (22) Onagraceae / Willowherb Fam. A D DK E F GB GR HR I NL S Zyp
Epimedium / Barren-Wort (3) Berberidaceae / Barberry Fam. D
Erica / Heath (4) Ericaceae / Heather Fam. Chi D F GR HR I Les Pal Sam Ten
Eruca vesicaria / Garden Rocket Brassicaceae / Crucifers D F GR HR Rho Tun
Erucaria hispanica / Spanish Pink Mustard Brassicaceae / Crucifers Rho
Erucastrum / Rocket (2) Brassicaceae / Crucifers A D F
Erysimum / Treacle Mustard,Wallflower (25) Brassicaceae / Crucifers A D E F GR HR I Kre Les Rho Sam Siz
Eschscholzia californica / California Poppy Papaveraceae / Poppy Fam. D Ten
Euonymus / Spindle (6) Celastraceae / Spindle Fam. D F HR S
Fibigia / Fibigia (2) Brassicaceae / Crucifers D GR
Forsythia / Golden Bell,Border Forsythia (2) Oleaceae / Ash Fam. D
Fraxinus / Ash (4) Oleaceae / Ash Fam. A D E F GR HR I
Fuchsia magellanica / Fuchsia Onagraceae / Willowherb Fam. IRL
Galium / Bedstraw (43) Rubiaceae / Bedstraw Fam. A CH Chi Cor D E F GR HR I IRL Kre Les Mal Rho S SLO Sam
Gentiana cruciata / Cross-Leaved Gentian Gentianaceae / Gentian Fam. D E HR
Gentianella / Gentian (3) Gentianaceae / Gentian Fam. A D E F I IRL
Glaucium / Horned Poppy (2) Papaveraceae / Poppy Fam. Chi Cor D F GR Kre Les NL Rho
Hesperis / Dame's Violet (3) Brassicaceae / Crucifers A D F HR IRL Sam
Hippophae / Sea Buckthorn (2) Elaeagnaceae / Sea-Buckthorn Fam. D NL S
Hirschfeldia incana / Shortpod Mustard, Buchanweed Brassicaceae / Crucifers A D F GR Kre Rho Sam
Hormathophylla / Madwort (3) Brassicaceae / Crucifers F
Hornungia / Hutchinsia (5) Brassicaceae / Crucifers A D E F GR I
Hypecoum / Hypecoum (3) Papaveraceae / Poppy Fam. Chi Cor GR Les Rho Sam
Iberis / Candytuft (9) Brassicaceae / Crucifers D E F GR I Rho Sam
Ilex aquifolium / Holly Aquifoliaceae / Holly Fam. D E F IRL Mal
Isatis / Woad (2) Brassicaceae / Crucifers A D F
Jasminum / Jasmine (2) Oleaceae / Ash Fam. D F
Kernera saxatilis / Kernera Brassicaceae / Crucifers A D F
Knautia / Scabious,Widow Flower (14) Caprifoliaceae / Honeysuckle Fam. A Cor D E F GR HR I Kre PL Rho S SLO
Laurus / Laurel (2) Lauraceae / Laurel Fam. D GR Gom HR Mal Ten
Lepidium / Pepperwort,Pepperweed (14) Brassicaceae / Crucifers A D DK E F HR I Les Mal Sam
Ligustrum / Privet (3) Oleaceae / Ash Fam. A D E F I IRL
Lobularia / Alison (2) Brassicaceae / Crucifers Cor D F HR I Mal Ten
Ludwigia / Hampshire Purslane (3) Onagraceae / Willowherb Fam. A D
Lunaria / Honesty (2) Brassicaceae / Crucifers A D HR SLO
Macleaya cordata / Plume Poppy Papaveraceae / Poppy Fam. D
Malcolmia / Stock (6) Brassicaceae / Crucifers Chi F GR Kre Les Rho Sam
Matthiola / Stock (5) Brassicaceae / Crucifers Chi Cor F GR HR I Les Mal Rho Sam Siz Zyp
Meconopsis cambrica / Welsh Poppy Papaveraceae / Poppy Fam. D E F
Microthlaspi / Penny-Cress (3) Brassicaceae / Crucifers A D F GR HR Rho
Minuartia cherlerioides / Cherler's Sandwort Caryophyllaceae / Campion Fam. A
Moehringia muscosa / Mossy Sandwort Caryophyllaceae / Campion Fam. A D E HR
Moenchia erecta / Upright Chickweed Caryophyllaceae / Campion Fam. D
Moricandia / Violet Cabbage (2) Brassicaceae / Crucifers D E Tun
Murbeckiella pinnatifida / Pinnatifid Rock-Cress Brassicaceae / Crucifers F
Myagrum perfoliatum / Mitre Cress, Bird's-Eye Cress Brassicaceae / Crucifers HR
Myriophyllum / Water Milfoil (4) Haloragaceae / Water Milfoil Fam. D F HR I NL
Nasturtium / Water Cress (2) Brassicaceae / Crucifers A Cor D E F I Kre Mal NL
Neslia paniculata / Ball Mustard Brassicaceae / Crucifers A D
Noccaea / Penny-Cress (8) Brassicaceae / Crucifers A D F GR HR I
Oenothera / Evening Primrose (42) Onagraceae / Willowherb Fam. CH D E F GR I
Olea / Olive (3) Oleaceae / Ash Fam. Chi Cor F GR I Kre Mal Rho Sam
Pachysandra terminalis / Carpet Box Buxaceae / Box Fam. A D
Papaver / Poppy (20) Papaveraceae / Poppy Fam. A Chi Cor D E F GR I Kre Les Mal Rho S SLO Sam
Peltaria alliacea / Garlic Cress Brassicaceae / Crucifers A HR
Petrocallis pyrenaica / Pyrenean Whitlow Grass Brassicaceae / Crucifers A F I
Philadelphus coronarius / Sweet Mock Orange, English Dogwood Hydrangeaceae / Hydrangea Fam. D
Phillyrea / Phillyrea (2) Oleaceae / Ash Fam. Cor E F HR I
Phyla nodiflora / Turtle Grass, Turkey-Tangle Fogfruit Verbenaceae / Verbena Fam. I
Phyllolepidum cyclocarpum / Round-Fruited Madwort Brassicaceae / Crucifers GR
Plocama / Plocama (2) Rubiaceae / Bedstraw Fam. GR Gom
Ramonda nathaliae / Nathalie's Ramonda Gesneriaceae / Gesneria Fam. GR
Raphanus / Radish (4) Brassicaceae / Crucifers Cor D F HR I IRL Les Mal
Rapistrum / Cabbage (2) Brassicaceae / Crucifers A Cor E F HR NL Rho Sam
Rhamnus / Buckthorn (10) Rhamnaceae / Buckthorn Fam. A D E F GR HR I IRL Mal S
Rhodiola rosea / Golden Root, Roseroot Crassulaceae / Stonecrop Fam. A HR
Rhodotypos scandens / Jetbead Rosaceae / Rose Fam. D
Rhus / Sumach (2) Anacardiaceae / Sumach Fam. D E F
Ricotia cretica / Ricotia Brassicaceae / Crucifers Kre
Rorippa / Yellow-Cress (9) Brassicaceae / Crucifers A D F HR I NL
Rubia tenuifolia / Narrow-Leaved Madder, Himalayan Madder Rubiaceae / Bedstraw Fam. Chi GR Rho
Rubiaceae spec1 / Bedstraw ? Rubiaceae / Bedstraw Fam. Les
Sagina / Pearlwort (3) Caryophyllaceae / Campion Fam. A D F I NL S
Sherardia arvensis / Field Madder Rubiaceae / Bedstraw Fam. Cor D E HR Rho
Sinapis / Mustard (2) Brassicaceae / Crucifers D GR HR Rho Sam
Sisymbrium / Rocket (10) Brassicaceae / Crucifers A Chi Cor D E F GR HR I Kre Les Mal Rho
Styrax officinalis / Styrax Tree Styracaceae / Styrax Fam. Kre Rho Sam
Succisa pratensis / Devil's-bit Scabious Caprifoliaceae / Honeysuckle Fam. A D F IRL S
Succisella inflexa / Southern Succisella Caprifoliaceae / Honeysuckle Fam. D SLO
Syringa / Lilac (2) Oleaceae / Ash Fam. D
Tamarix / Tamarisk (2) Tamaricaceae / Tamarisk Fam. HR Kre Rho
Teesdalia nudicaulis / Shepherd's Cress Brassicaceae / Crucifers D F
Thesium alpinum / Alpine Bastard Toadflax Thesiaceae / Thesium Fam. A D F
Thlaspi / Penny-Cress,Täschelkraut (5) Brassicaceae / Crucifers A D F GR
Thliphthisa / Woodruff (2) Rubiaceae / Bedstraw Fam. D GR
Thymelaea / Thymelaea (5) Thymelaeaceae / Daphne Fam. D F GR Kre Mal
Trapa natans / Water Caltrop Lythraceae / Purple Loosestrife Fam. D F
Vaccinium / Bilberry,Cranberry (5) Ericaceae / Heather Fam. A D F S
Valantia / Valantia (2) Rubiaceae / Bedstraw Fam. Chi Kre Mal Rho Sam
Veronica / Speedwell (45) Plantaginaceae / Plantain Fam. A CH Chi Cor D F GR HR I IRL Kre Mal NL Rho S SLO Sam
Viscum / Mistletoe (3) Viscaceae / Mistletoe Fam. Cor D GR Kre
 
 
 
 
 
Other flower anatomy
 

 


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