Laurie Campbell / Field gentian / Felwort (Gentianella campestris) flowering, Skye, Scotland, July

Steve Nicholls / Autumn gentian / Felwort (Gentianella amarella) in flower, Hampshire, UK

Michel Poinsignon / Gentian (Gentianella ciliata) flowers opening from buds, Dudelande, Luxembourg, September

Michel Poinsignon / Gentian (Gentianella ciliata) flowers opening from buds, Dudelande, Luxembourg, September

Philippe Clement / Field gentian (Gentianella campestris) and Spring gentian (Gentiana verna) in flower, Switzerland

Russell Cooper / Autumn Gentian / Felwort (Gentianella amarella) UK

Andy Sands / Autumn Gentian (Gentianella amarella) Oxfordshire, England, UK

Andy Sands / Autumn Gentians (Gentianella amarella) Oxfordshire, England, UK

Bernard Castelein / Chiltern gentian flowers {Gentianella germanica} France

Bernard Castelein / Flower heads of Chiltern gentian (Gentianella germanica) NW France - typically found on lime

Robin Chittenden / Autumn gentian {Gentianella amarella} UK

Jason Smalley / Autumn Gentian Felwort {Gentianella amarella} Barnack, Cambridgeshire, UK.

Pete Oxford / Gentians flowering on the Paramo {Gentianella hirculus} Cajas NP, Andes, Ecuador

Pete Oxford / {Gentianella cernuda} high altitude plant, Chimborazo NP, Andes, Ecuador

Robin Chittenden / German gentians (Gentianella austriaca) in flower, Austria, September

Dr. Axel Gebauer / Gentian (Swertia sp), Koko Nor lake, Tso Ngonbo, Qinghai Hu, Qinghai Province, Tibet, Amdo, China

Dr. Axel Gebauer / Gentian (Gentiana tibetica) growing beside Koko Nor lake, Tso Ngonbo, Qinghai Hu, Qinghai Province, Tibet, China