Alex Hyde / Stinging nettle (Urtica dioica) close up of stinging hairs, the silicified tips of the stinging hairs are brittle and snap off easily if the nettle is brushed. Focus stacked image. UK.

Colin Varndell / Stinging nettle (Urtica dioica) foliage in spring, Dorset, UK, May

Nigel Cattlin / Peacock butterfly (Inachis io) last instar caterpillar feeding on Stinging nettle (Urtica dioica) food plant.

Nick Upton / Wolf spider (Pardosa) sunning itself on a Common nettle (Urtica dioica) leaf, before walking off, Wiltshire, England, UK, May.

Nick Upton / Wolf spider (Pardosa) sunning itself on a Common nettle (Urtica dioica) leaf, before walking off, Wiltshire, England, UK, May.

Nick Upton / Wolf spider (Pardosa) sunning itself on a Common nettle (Urtica dioica) leaf, before walking off, Wiltshire, England, UK, May.

Nick Upton / Green nettle weevils (Phyllobius pomaceus) mating on a Common nettle (Urtica dioica) leaf, Wiltshire, UK, May.

Mike Read / Moschatel (Adoxa moschatellina) group amongst nettle (Urtica dioica). Blashford Lakes Nature Reserve, Hampshire and Isle of Wight Wildlife Trust Reserve, Ellingham, Ringwood, Hampshire, England, UK. A...

Albert Lleal / Stinging Nettle (Urtica dioica) trichomes, 13x magnification, Barcelona, Spain

Nick Upton / Roe deer (Capreolus capreolus) buck browsing on Lime (Tilia sp) leaves at the woodland edge, at dusk. Near Bath, England, UK. May.

Robin Chittenden / Eurasian Siskin (Carduelis spinus) perched on Stinging nettle (Urtica dioica), Ceredigion, Wales, UK. August.

Edwin Giesbers / Barn swallow (Hirundo rustica) perched on nettle, The Netherlands