131358 IMPERFORATE ST JOHN’S-WORT Hypericum maculatum (Clusiaceae) Height to 1m. Upright, hairless perennial. Similar to Perforate St John’-wort but with square, unwinged stems. Found in woodland and scrub. FLOWERS are 2cm across with yellow petals (Jun-Aug). FRUITS are dry capsules. LEAVES are oval and lack translucent dots. STATUS-Widespread and locally common throughout, except in the N.