Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Aponogeton rigidifolius is native to Sri Lanka. In the wild it grows in deep water at temperatures of 68 to 77F (20 - 25C) in sandy soil with the water pH at 7.2. The creeping rhizome is cylindrical and about .5 inch (1cm) thick. The leaves stay submerse, are firm (almost leather-like and seem immune to most fish and snails) about 8 to 23 inches long (20 - 60cm) and 1 to 1.6 inches wide (2.5 - 4cm). The margins of the leaves are flat to slightly undulate with a distinct midrib. In colour they are a dark green to reddish colour. The inflorescence has a single spike with white flowers and small fruits.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.