Gary Bell/ Oceanwide / Hawaiian Sea Urchin (Tripneustes gratilla), Anilao, Philippines

Constantinos Petrinos / Collector urchin (Tripneustes gratilla) detail close up, Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Urchin bumblebee shrimp (Gnathophyllides mineri) living commensally with Collector Urchin (Tripneustes gratilla), close up. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Urchin bumblebee shrimp (Gnathophyllides mineri) living commensally with Collector Urchin (Tripneustes gratilla), close up. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Urchin bumblebee shrimp (Gnathophyllides mineri) living commensally with Collector Urchin (Tripneustes gratilla), close up. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Urchin bumblebee shrimp (Gnathophylloides mineri) living commensally with Collector Urchin (Tripneustes gratilla), close up. Lembeh Strait, North Sulawesi, Indonesia.

Georgette Douwma / Collector urchin (Tripneustes gratilla)Debris tends to 'collect' on these urchins, hence their name. Mabul, Malaysia. Indo-Pacific.

Pascal Kobeh / Collector urchin (Tripneustes gratilla), New Caledonia, Pacific Ocean.

Sue Daly / Sea Urchin (Trypneustes gratilla) Poor Knights Islands, New Zealand, January

Doug Perrine / Horned helmet shell (Cassis cornuta) probes a Collector urchin or hawa e maoli (Tripneustes gratilla) and rises up to pounce on it, Honokohau, Kona, Big Island, Hawaii, Central Pacific Ocean

David Fleetham / Collector urchin (Tripneustes gratilla), spawning, releasing eggs or sperm, Hawaii.

Georgette Douwma / Cake urchin (Tripneustes gratilla) Cebu, Malapascua Island, Philippines, September

Jack Dykinga / Hairy bird's foot morning glory (Ipomoea leptotoma) flower over Prickly pair (Opuntia sp) Catalina State Park, near Tucson, Arizona, USA, August.

Albert Lleal / Common Morning Glory (Ipomoea purpurea) SEM close-up view of pollen at 210x magnification

Patricio Robles Gil / Cardon (Pachycereus pringlei) cactus and flowering Common Morning Glory (Ipomoea purpurea) vines in the Miquihuana Desert, northeast Mexico

Nigel Cattlin / Beach morning glory (Ipomoea pes-caprae) flowers amongst creeping plants. Thailand.

Nigel Cattlin / Water spinach (Ipomoea aquatica), tender shoots used for cooking in South East Asia. Thailand.

Bernard Castelein / Hedge bindweed (Calystegia sepium), Peerdsbos, Brasschaat, Belgium. July

Bernard Castelein / Hedge bindweed (Calystegia sepium), Peerdsbos, Brasschaat, Belgium. July

Edwin Giesbers / Blue morning flower (Ipomoea indica) flowers and carpet of leaves. Cyprus. April.

Robert Thompson / Fallopia convolvulus (Convolvulus arvensis) Vingrau, French Pyrenees, France. May

Robert Thompson / Cantabrican morning glory (Convolvulus cantabrica), Catllar, Pyrenees Orientales, south west France. May.

Rod Williams / Hedge bindweed (Calystegia sepium) Brockley Cemetery, Lewisham, London, England, UK. June.

Ernie Janes / Dwarf morning glory (Convolvus tricolour) portrait, Norfolk, England, UK, July.

Sue Daly / Sea bindweed (Calystegia soldanella), Herm, British Channel Islands, June.

Mike Read / Common dodder (Cuscuta epythimum) flowers, Broughton Down Hampshire Wildlife Trust Reserve, near Broughton, Hampshire England, UK, August.

Oriol Alamany / Morning Glory (Calystegia soldanella) in the dunes of es Cavallet beach, Las Salinas (Ses Salines) Natural Park, Ibiza biodiversity and culture UNESCO World Heritage Site, Spain.

John Waters / Great bindweed (Calystegia sepium) in flower, with dew drops, Somerset, UK, October.

John Waters / Great bindweed (Calystegia sepium), in flower, with dew drops, Somerset, UK, October.

Martin Gabriel / Sea bindweed / Beach morning glory (Calystegia soldanella), flowering, Salalah, Sultanate of Oman, February.

Martin Gabriel / Beach morning glory (Calystegia soldanella) , La Digue Island, Republic of Seychelles

Rod Williams / Hoverfly (Chrysotoxum bicinctum) feeding on field bindweed (Convolvulus) Brockley Cemetery, Lewisham, London UK August

Rod Williams / Hoverfly (Chrysotoxum bicinctum) feeding on field bindweed (Convolvulus) Brockley Cemetery, Lewisham, London, UK July

Tim Laman / Small dugout canoe with outriggers on beach with beach Morning glory flowers (Convolvulaceae) Bantanta Island, Papua, Indonesia

Bernard Castelein / Great bindweed (Calystegia sepium), Peerdsbos, Brasschaat, Belgium August

Bernard Castelein / Great bindweed (Calystegia sepium), Peerdsbos, Brasschaat, Belgium August

Rod Williams / Field bindweed (Convulvulus arvensis) Brockley Cemetery, Lewisham, London. July.

Rod Williams / Hoverfly (Helophilus pendulus) feeding on Field bindweed (Convolvulus arvensis) Brockley Cemetery, Lewisham, London UK August

Rod Williams / Hoverfly (Syrphus sp) feeding on Field bindweed (Convolvulus arvensis) Brockley Cemetery, Lewisham, London UK, August

Nick Upton / Blue morning glory (Ipomoea indica) flowers, an Asian species invasive in Portugal, Monchique mountains, Algarve, Portugal, August 2013.

Nick Upton / Blue morning glory (Ipomoea indica) flowers, an Asian species invasive in Portugal, Monchique mountains, Algarve, Portugal, August 2013.

Nick Upton / Blue morning glory (Ipomoea indica) flowers, an Asian species invasive in Portugal, Monchique mountains, Algarve, Portugal, August 2013.

Philippe Clement / Larger bindweed (Convolvulus sepium ) in flower, Belgium, August.

Philippe Clement / Larger bindweed (Convolvulus sepium ) in flower, Belgium, August.

Colin Varndell / Sea bindweed (Calystegia soldanella) flowers in bloom. Dorset, UK, June.

Colin Varndell / Sea bindweed (Calystegia soldanella) flowers, Dorset, UK, July.

Stephen Dalton / Close-up of Bindweed (Convolvulus sp) climbing round a plant stem, UK.

Rod Williams / Field Bindweed (Convolvulus arvensis) Ladywell Fields, Lewisham, South East London, England, UK, July

Kim Taylor / Dodder (Cuscuta sp) climbing up grass stem. France, July.

Paul Harcourt Davies / Field Bindweed (Convolvulus arvensis) in flower, Podere Montecucco, Orvieto, Umbria, Italy, July.

Doug Wechsler / Dodder (Cuscuta) parasitic plant on Goldenrod (Solidago) Bloomfield Farm, Morris Arboretum, Philadelphia, Pennsylvania, USA, August.

Nick Upton / Sea bindweed / Beach Morning Glory (Calystegia soldanella) flowering on coastal sand dunes among Marram grass (Ammophila arenaria) and Lesser hawkbit (Leontodon saxatilis), Studland, Dorset, UK, July...

Nick Upton / Sea bindweed / Beach Morning Glory (Calystegia soldanella) flowering on coastal sand dunes among Marram grass (Ammophila arenaria) and Lesser hawkbit (Leontodon saxatilis), Studland, Dorset, UK, July...

Staffan Widstrand / Beach Morning Glory (Ipomoea pes-caprae) Pulicat Lake, Tamil Nadu, India, January 2013.

Staffan Widstrand / Beach Morning Glory (Ipomoea pes-caprae) Pulicat Lake, Tamil Nadu, India, January 2013.

Albert Lleal / Common Morning Glory (Ipomoea purpurea) SEM close-up view of pollen grain at 420x magnification

Patricio Robles Gil / Cardon (Pachycereus pringlei) cactus and flowering Common Morning Glory (Ipomoea purpurea) vines in the Miquihuana Desert, northeast Mexico

Patricio Robles Gil / Morning Glory (Ipomoea sp) flowering on coastal sand dunes in Laguna Madre, Tamaulipas, Mexico

Patricio Robles Gil / Common Morning Glory (Ipomoea purpurea) flowering vines in the Miquihuana Desert, northeast Mexico

Daniel Heuclin / California dodder (Cuscuta californica) a plant parasite, growing on Creosote bush (Larrea tridentata), Amargosa desert, Nevada, USA. May.

Daniel Heuclin / California dodder (Cuscuta californica) a plant parasite, growing on Creosote bush (Larrea tridentata), Amargosa desert, Nevada, USA. May.

Daniel Heuclin / California dodder (Cuscuta californica) a plant parasite, growing on Creosote bush (Larrea tridentata), Amargosa desert, Nevada, USA. May.

Daniel Heuclin / California dodder (Cuscuta californica) a plant parasite, growing on Creosote bush (Larrea tridentata), Amargosa desert, Nevada, USA. May.

Daniel Heuclin / California dodder (Cuscuta californica) a plant parasite, growing on Creosote bush (Larrea tridentata), Amargosa desert, Nevada, USA. May.

Roland Seitre / Scarlet creeper (Ipomoea hederifolia) in flower, wrapped around tree trunk, Abaco Islands, Bahamas.

Robert Thompson / Shrubby bindweed (Convolvulus cneorum) in flower, Ordesa National Park, Pyrenees, Northern Spain. June.

Linda Pitkin / Blue morning glory (Ipomoea indica) in flower, Arta, Mallorca, Balearic Islands. September.

Linda Pitkin / Blue morning glory (Ipomoea indica) in flower, Arta, Mallorca, Balearic Islands. September.

Jack Dykinga / Lancehair morning glory (Ipomoea pubescens) flowering amongst blades of a Soaptree yucca (Yucca elata) after monsoon rain, Catalinba State Park, Arizona, USA. September.

Jack Dykinga / Lancehair morning glory (Ipomoea pubescens) flowering amongst blades of a Soaptree yucca (Yucca elata) after monsoon rain, Catalinba State Park, Arizona, USA. September.

Jack Dykinga / Lancehair morning glory (Ipomoea pubescens) flowering amongst blades of a Soaptree yucca (Yucca elata) after monsoon rain, Catalinba State Park, Arizona, USA. September.

Jack Dykinga / Lancehair morning glory (Ipomoea pubescens) flowering amongst blades of a Soaptree yucca (Yucca elata) after monsoon rain, Catalinba State Park, Arizona, USA. September.

Jack Dykinga / Lancehair morning glory (Ipomoea pubescens) in flower across the mesquite forest floor after monsoon rain, Catalina State Park, Arizona, USA. September.

Jack Dykinga / Lancehair morning glory (Ipomoea pubescens) in flower across the mesquite forest floor after monsoon rain, Catalina State Park, Arizona, USA. September.

Adrian Davies / Common dodder (Cuscuta epithymum) parasitic on Gorse (Ulex sp.), Land's End, Cornwall, UK. September.

Adrian Davies / Common dodder (Cuscuta epithymum) parasitic on Gorse (Ulex sp.), Land's End, Cornwall, UK. September.

Paul Harcourt Davies / Field dodder (Cuscuta campestris) a parasitic plant, wrapped around a Clover (Trifolium sp.) stem, Orvieto, Umbria, Italy. August.

Paul Harcourt Davies / Morning glory (Ipomoea purpurea) in flower, Ponza, Lazio, Italy. September.

Paul Harcourt Davies / Greater dodder (Cuscuta europaea), a parasitic plant, growing on a plant stem, Terminillo, Lazio, Italy. July.

Terry Whittaker / Common carder bee (Bombus pascuorum) feeding on nectar of a Bindweed flower (Calystegia sepium) before leaving frame, Greater Manchester, June.

Adrian Davies / Dodder (Cuscuta sp.) transverse section through stem of host plant showing haustoria of the parasite.

Nick Upton / Hedge bindweed (Calystegia sepium) flower close up, Kenfig National Nature Reserve, Glamorgan, Wales, UK, September.

Nick Upton / Hedge bindweed (Calystegia sepium) flowering in hedgerow in coastal sand dunes, Kenfig National Nature Reserve, Glamorgan, Wales, UK, September.

Nick Upton / Sea bindweed (Calystegia soldanella) flowering on coastal sand dunes, Kenfig National Nature Reserve, Glamorgan, Wales, UK, June.

Linda Pitkin / Large bindweed (Calystegia silvatica) in flower, Surrey, England. July.

Linda Pitkin / Large bindweed (Calystegia silvatica) in flower, Surrey, England. July.

Ashley Cooper / Dodder (Cuscuta epithymum) a parasitic, climbing plant growing on gorse, Cape Cornwall, UK. September.

Paul Harcourt Davies / Heavenly-blue morning-glory (Ipomoea tricolor) in flower, Umbria, Italy. October.

Paul Harcourt Davies / Field dodder (Cuscuta campestris) parasitizing Clover (Trifolium) species forming twining mass of stems, Umbria, Italy. November.

Bernard Castelein / Bindweed (Calystegia sepium), Peerdsbos, Brasschaat, Belgium

Bernard Castelein / Bindweed (Calystegia sepium), Peerdsbos, Brasschaat, Belgium

Claudio Contreras / Island morning glory (Calystegia macrostegia) flowers, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, April

Claudio Contreras / Island morning glory (Calystegia macrostegia) flowers, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, April

Dave Watts / Blushing bindweed (Convolvulus angustissimus). Tasmania, Australia. January.

Nick Upton / Silvery leafcutter bee (Megachile leachella) visiting a Sea bindweed (Calystegia soldanella) flower on coastal dunes, it's typical habitat, Dorset, UK, June.

Adrian Davies / Common dodder (Cuscuta epithymum) growing parasitically on Gorse (Ulex sp) along the coast, Cornwall, England, UK. July 2020.

John Waters / Greater bindweed (Calystegia sepum) on gravestone, Arnos Vale Cemetery, now disused, overgrown and a refuge for nature. Bristol, England, UK, June 2019,

Linda Pitkin / Greater dodder (Cuscuta europaea), locally rare parasitic plant. Runnymede, Surrey, England, July 2015.

Linda Pitkin / Dodder (Cuscuta epithymum), locally rare plant, parasitic plant. Dorking, Surrey, England, July. Vulnerable in England.

Linda Pitkin / Dodder (Cuscuta epithymum) a locally rare parasitic plant on Cross-leaved Heath (Erica tetralix) Esher Common SSSI, Surrey, England, July.

Linda Pitkin / Dodder (Cuscuta epithymum) in flower, a locally rare, parasitic plant, on Cross-leaved Heath (Erica tetralix) Esher Common SSSI, Surrey, England, July.

Nigel Cattlin / Hedge bindweed (Calystegia sepium) a garden weed, Berkshire, England, UK, September

Nigel Cattlin / Flowering Hedge bindweed (Calystegia sepium) a garden weed, Berkshire, England, UK, September

Nigel Cattlin / Hedge bindweed or granny-pop-out-of-bed (Calystegia sepium) buds on flowering plant climbing through an old hedge, Berkshire, England, UK, July

Nigel Cattlin / Hedge bindweed (Calystegia sepium) flowering plant climbing through an old hedge, Berkshire, England, UK, July

Edwin Giesbers / Mexican morning glory (Ipomoea tricolor) Madeira.