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Leaves pubescent or sometimes glabrous, entire or dentate, ovate to linear, 4–10 mm long. Fruit dehiscent. Flowers with peduncles 5–30 mm long. Corolla pale blue, 4–12 mm long. Capsule obconic, up to 6 mm long and 3 mm diam. Procumbent to ascending herbs
Flowers unisexual, dioecious. Corolla glabrous inside. Coast and Cumberland Plain. Damp places; sometimes a weed in lawns. Fl. spring–summer Isotoma fluviatilisfluviatilis