Beaded and thick-headed glasswort
The ground-hugging glassworts are perhaps the most salt tolerant of all saltmarsh plants. The bright green beaded glasswort is more common, and grows mainly in the middle and lower estuary. It also occupies damp crevices on rocky shores. The less common thick headed glasswort is blue-green, slightly larger, and prefers drier ground. The fragile air breathing snail often clings to its branches.