This section is from the book "Commercial Gardening Vol2", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
There are two species - A. Dorax and A. conspicua - in which a trade is done by hardy-plantsmen. They are ornamental grasses from southern Europe, and produce large feathery plumes or spikes of flowers. Raised from seeds and also by division.