141501 HOG’S FENNEL Peucedanum officinale (Apiaceae) Height to 1.5m. Hairless, dark green perennial with solid stems. Restricted to coastal grassland on clay soils. FLOWERS are deep yellow and borne in open umbels, 15-20cm across (Jul-Sep). FRUITS are narrow-ovate. LEAVES are 4- to 6-trifoliate with flattened, narrow segments. STATUS-Restricted to a couple of locations on the Thames Estuary.