Jack Dykinga / Foothills of the Temblor Range, carpeted with Coreopsis (yellow) and Purple Owl's Clover (Castilleja exserta) flowers. Carrizo Plain, California, USA. 30th March 2019.
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Floris van Breugel / Paintbrush (Castilleja parviflora) flowering in withered sage bush, White Mountains, California, USA, July
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Alex Hyde / Fragrant Orchid (Gymnadenia conopsea) and Yellow Rattle (Rhinanthus sp.) flowering in ancient alpine hay meadow. Nordtirol, Austrian Alps. June.
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Nigel Cattlin / Knapweed broomrape (Orobanche elatior) flower spike in grassland. Disused chalk pit nature reserve, Berkshire, England, UK. June
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Phil Savoie / Indian paintbrush (Castilleja angustifolia) flower, Beaverhead National Forest, Montana, USA. July.
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Nick Garbutt / Alpine Wildflower meadow, a diversity of species including Meadow clary (Salvia pratensis), Sainfoin (Onobrychis sp) and Rattle (Rhinanthus sp). North Tyrol, Austria. June.
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Adrian Davies / Knapweed broomrape (Orobanche elatior), parasite on roots of Greater knapweed (Centaurea scabiosa). Hampshire, England, UK. June.
Heather Angel / Broomrape (Pedicularis longiflora) in wet meadow amongst Horsetail (Equisetum sp). Maroon marks on flowers act as Nectar guides. Road from Barkham to Ruo Er Gai, Sichuan Province, China. July.
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Heather Angel / Bumblebee scarab beetles (Pygopleurus humeralis) feeding on Phelypaea flower (Phelypaea coccinea). Flower has marks that mimic beetle elytra wings to attract pollinators. Plant parasitic on Tanacetum...
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Heather Angel / Texas bluebonnets (Lupinus texensis) and Indian paintbrush (Castilleja coccinea) amongst wildflowers in ditch beside byway. Rains triggered germinaton of annual seeds. Cuero, Texas, USA. April.
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Heather Angel / Lousewort (Pedicularis oxycarpa), a hemi-parasite on grass. Pollinated by bumblebees through buzz pollination, rapid vibration of flight muscles releases pollen in the flower. Near Barkham, Sichuan Pr...
