This section is from the book "British Wild Flowers - In Their Natural Haunts Vol5-6", by A. R. Horwood. Also available from Amazon: A British Wild Flowers In Their Natural Haunts.
Cotyledon 1 (if more, alternate); leaves parallel veined; usually alternate, sheathing; parts of flower in 3's or 6's or 9's, etc., rarely in fours; wood in scattered bundles, not in rings; no medullary rays.
 
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