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AUTUMN GENTIAN Gentianella amarella (Gentianaceae) Height to 25cm. Variable and hairless biennial that is often tinged purple. Found in grassy areas, mostly on calcareous soil and sand dunes. FLOWERS are 1cm across and purple, with 4 or 5 corolla lobes and equal calyx lobes; borne in upright spikes (Jul-Oct). FRUITS are capsules. LEAVES form a basal rosette in the first year but wither before the flower stem appears in the second year.