John Shaw / Hybrid Poplar tree plantation in autumn (Populs sp.). Boardman Tree Farm, near Irrigon, Oregon, USA. October.

John Shaw / Abandoned house in middle of a wheat field. Palouse farming area, south eastern Washington, USA, August.

Cyril Ruoso / Chacma Baboon (Papio ursinus) stealing rhubarb from shopper, Cape Town, South Africa. Sequence 2 of 6

Nick Upton / 2020VISION / Queen Hornet (Vespa crabro) feeding on Knotweed flower (Persicaria bistorta "superba") in garden, Wiltshire, England, UK, May . Property released.

Jerry Monkman / Nature Conservancy employees cutting back Japanese knotweed (Fallopia japonica) in an invasive species eradication effort on the TNC's Silverweed Seep preserve in Plainfield, New Hampshire, USA.

Bernard Castelein / Cabbage white (Pieris brassicae) covered in dew droplets, on Knotweed (Polygonaceae) flower. Peerdsbos, Brasschaat, Belgium. September.

Nigel Cattlin / Common knotgrass (Polygonum aviculare) growing as arable weed. England, UK. August.

Nigel Cattlin / Redshank (Persicaria maculosa) growing as arable weed. England, UK. September.

Nigel Cattlin / Redshank (Persicaria maculosa) growing as arable weed. England, UK. September.

Nigel Cattlin / Redshank (Persicaria maculosa), an annual arable weed. Berkshire, England, UK. August.

Heather Angel / Alexander's rhubarb (Rheum alexandrae) and Dwarf purple rhododendron (Rhododendron impeditum) in wet valley. Large bracts on rhubarb protect tiny flowers from UV rays. Near Lake Kangding Xian Cuo,...

Heather Angel / Alexander's rhubarb (Rheum alexandrae) and Dwarf purple rhododendron (Rhododendron impeditum) in wet valley with low cloud. Large bracts on rhubarb protect tiny flowers from UV light. Near Lake Ka...