Belongs to: gentian family

Yellow wort Blackstonia perfoliata

Best time to see: Jun to Oct

Key facts

A native plant found in dry grasslands on shallow chalk and limestone soils, growing to between 15 and 45 cm high

Oval leaves form a loose basal rosette; leaves on the stem are in pairs with their bases fused together

Like other members of the gentian family the flowers close up in late afternoon; used to make a yellow dye

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