Morley Read / Gentian flowers (Gentiana cerastoides) moving in the wind, near Cotopaxi Volcano, Ecuador. (non-ex)

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

Cyril Ruoso / Woman with baby collecting Madagascar periwinkle (Catharanthus roseus) flowers and leaves, used in herbal medicine, and containing molecules which are used in the treatment of leukemia cancer. Berenty...

Enrique Lopez-Tapia / Spiny tree trunk (Pachypodium sp) Berenty Reserve, Madagascar.

Paul Harcourt Davies,Paul Harcourt Davies / Appennine Trumpet Gentian (Gentiana dinarica) in flower, on roadside below Gran Sasso, Appennines, Abruzzo, Italy, May

Nigel Cattlin / Cleavers (Galium aparine) burrs with hooks tha attach to animal fur and clothes for dispersal, close-up. England, UK. July.

Nigel Cattlin / Cleavers (Galium aparine) burrs with hooks tha attach to animal fur and clothes for dispersal, close-up. England, UK. July.

Nigel Cattlin / Cleavers (Galium aparine) burrs with hooks tha attach to animal fur and clothes for dispersal. England, UK. July.

Nigel Cattlin / Cleavers (Galium aparine) seedling with cotyledons and early leaf rosettes, growing as garden weed.

Morley Read / Gentian flowers (Gentiana cerastoides) moving in the wind, with small beetle nectaring, near Cotopaxi Volcano, Ecuador. (non-ex)

Morley Read / Gentian flowers (Gentiana cerastoides) moving in the wind, with small beetle nectaring, near Cotopaxi Volcano, Ecuador. (non-ex)

Nick Upton / Male Common European Crane fly / Daddy long legs (Tipula paludosa) recently emerged and resting on Goose grass / Cleavers (Galium aparine) by a pond, Suffolk, UK, May.