Stamens as many as corolla lobes (often alternating with staminodes) (previously Primulaceae) Theophrastaceae
Leaves rather thick; the lower ones ovate or oblong; the upper ones narrower. Corolla up to 10 mm diam, white or tinged with pink. Perennial with ± tufted rootstock. Stems usually warty or wrinkled, erect and bearing flowers or arched and stoloniferous or creeping and rooting at the nodes. Coast. Margins of saltmarshes and other sites near the sea. Fl. spring–summer. Creeping Brookweed Samolus repens
Leaves very thin, basal leaves obovate, 3–4 cm long; cauline leaves narrower and smaller. Flowers on filiform pedicels in loose racemes. Corolla 8–10 mm diam., white. Glabrous, erect herb with flowering stems up to 30 cm high. Widespread. Margins of swamps and rivers. Fl. spring-summer. Common Brookweed or Water Pimpernel Samolus valerandi