Cây gai
Cây được trồng rộng rãi trong nhân dân để lấy sợi làm lưới đánh cá và lấy lá để làm bánh. Rễ được dùng làm thuốc, sau khi thu hái rửa sạch, cắt bỏ rễ con, thái phiến mỏng, phơi hoặc sấy khô dùng dần.
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oMag4bu44buaw5PhuqDGoOG7tOG7reG6oOG6u8OKOuG6oOG7rk7huqDDk+G6puG7jOG6oCrhuqjhuqDhu65O4bqgKlLhu5rDk+G6oCrhuqbhu5rDk+G6oHnEguG6oFfDkkDhuqDhu4RF4buaw5PhuqDhu5rDkuG6pljDvXbhuqDhu64k4bqm4bqgVuG6qkbDknbhuqDDk+G7jEPhuqDhu5rhuqxX4bqgSMSQ4buw4bqgKuG6qOG7nOG6oEbDksOZ4bqgxqDhu7Lhu5rhuqDhu5rDkuG7oFfhuqDhu5rDk+G6qDrhuqDDg+G6oOG7luG6vuG7mnbhuqDhu5bhuqjGoOG6oOG6ruG6oOG7luG6vuG7mnfhu7Mv4buw4bu14buz4buw4bqgRuG7luG6plZW4bunw4Dhu7A54bucRzrDgOG7tTnhuqxG4bqgVuG7kuG6oOG7jcOSWOG6oOG7n+G6vOG7muG7sy/hu7Dhu7U=