Rolf Nussbaumer / Eastern Wood-Pewee (Contopus virens) South Padre Island, Texas, USA. May 2005

Gary K. Smith / Alexanders (Smyrnium olusatrum) in flower on sandy beach, North Cornwall coast, England, UK, May.

Nigel Cattlin / Wild carrot / Queen Anne's lace (Daucus carota) dense white umbel with insects and a single dark red maroon floret in the centre. Berkshire, England, UK.

Nigel Cattlin / Wild carrot / Queen Anne's lace (Daucus carota) dense white umbel with insects and a single dark red maroon floret in the centre.

Nigel Cattlin / Ragwort (Jacobaea vulgaris) yellow star-shaped flowers with ray and disc florets, some older and darker. Poisonous to livestock, Berkshire, July

Nigel Cattlin / Ragwort (Jacobaea vulgaris) yellow star-shaped flowers with ray and disc florets, some older and darker. Poisonous to livestock, Berkshire, July

Nigel Cattlin / Cow parsley (Anthriscus sylvestris) foliage with green fern-like, leaves on roadside verge, Berkshire, May

Nigel Cattlin / Cow parsley (Anthriscus sylvestris) foliage with green, fern-like, leaves on roadside verge, Berkshire, May

Nigel Cattlin / Cow parsley (Anthriscus sylvestris) stem node on wild umbellifer, Berkshire, England, UK. June

Nigel Cattlin / Cow parsley (Anthriscus sylvestris) purple tinted, ridged stem node of common roadside umbellifer in spring

Nigel Cattlin / Cow parsley (Anthriscus sylvestris) section through hollow ridged smooth-haired stem, June, Berkshire

Nigel Cattlin / Cow parsley (Anthriscus sylvestris) purple tinted, ridged stem node. Berkshire, England, UK, May.

Nigel Cattlin / Cow parsley (Anthriscus sylvestris) section through hollow ridged smooth-haired stem, June, Berkshire

Nigel Cattlin / Rough chervil (Chaerophyllim temulum) hairy rough purple spotted stems, Berkshire, England, UK. June

Nigel Cattlin / Rough chervil (Chaerophyllim temulum) hairy rough purple spotted stems, Berkshire, England, UK. June

Nigel Cattlin / Rough chervil (Chaerophyllim temulum) hispid (hairy) seeding, ripening umbel, Berkshire, June

Nigel Cattlin / Rough chervil (Chaerophyllim temulum) Berkshire, England, UK.

Nigel Cattlin / Purple spotted stems characteristic of Hemlock (Conium maculatum) hollow and poisonous, Devon, July

Nigel Cattlin / Purple spotted stems characteristic of Hemlock, (Conium maculatum) hollow and poisonous, Devon, July

Nigel Cattlin / Large flowering Hemlock (Conium maculatum) plants beginning to go to seed, Devon, July

Nigel Cattlin / Wild Sea carrot (Daucus carota subsp. gummifer) flowering on cliffs in South Devon, England, UK, July

Nigel Cattlin / Wild Sea carrot (Daucus carota subsp. gummifer) flowering on cliffs in South Devon, England, UK, July

Nigel Cattlin / Wild Sea carrot (Daucus carota subsp. gummifer), flowering on cliffs in South Devon, England, UK. July

Nigel Cattlin / Hogweed (Heracleum sphondylium) plant white flowering umbels and flower buds, Berkshire, England, UK. June

Nigel Cattlin / Scentless mayweed (Triplerospermum inodorum) profusely flowering chamomile or mayweed like plant and flower beetle (Meligethes aeneus) , Berkshire, England, UK, July

Nigel Cattlin / Scentless mayweed (Triplerospermum inodorum) profusely flowering chamomile or mayweed like plant, Berkshire, England, UK, July

Nigel Cattlin / Scentless mayweed (Triplerospermum inodorum) profusely flowering chamomile or mayweed like plant, Berkshire, England, UK, July

Nigel Cattlin / Woolly thistle (Cirsium eriophorum) purple flowers and grey glaucous and spiny buds of large plant on chalk downland, Berkshire, England, UK, June

Nigel Cattlin / Wild or yellow mignonette (Reseda lutea) flowering plant in front of an electric sheep fence on chalk downland, Berkshire, England, UK, May.

Nigel Cattlin / Wild or yellow mignonette (Reseda lutea) flowering plant in front of an electric sheep fence on chalk downland, Berkshire, England, UK, May.

Nigel Cattlin / Prickly sow-thistle (Sonchus asper) bold spiny plant coming into flower, Berkshire, England, UK, May

Nigel Cattlin / Prickly sow-thistle (Sonchus asper) bold spiny plant coming into flower, Berkshire, England, UK, May

Nigel Cattlin / Red campion (Silene dioica) male plant flowers of wild hedgerow dioecious plant in spring, Berkshire, England, UK

Nigel Cattlin / Common wintercress, bittercress or rocketcress (Barbarea vulgaris) yellow flowering plant, Berkshire, England, UK, April

Nigel Cattlin / Common wintercress, bittercress or rocketcress (Barbarea vulgaris) yellow flowering plant, Berkshire, England, UK, April