Flowering Rush Subclass

..... Basal leaves Opposite leaves
section I.2.2 petals present; petal-like ..... .....
3 3 9 6 1.631 Butomaceae (flowering rush) BE Butomus umbellatus .....
3 3 6-N 6-N 2.632Alismataceae 1. Alisma (water plaintain) BE 2. Sagittaria (arrow-heads) BE 3. Echinodorus (burhead) .....
3 3 1-N (2-x) 3.636 Hydrocharitaceae (frog's bit) 3. Hydrilla verticillata 4. Vallisneria (water celery) BE 5.Limnobium (American frog's bit) BE 6. Hydrocharis morsus-ranae (European frog's bit) 3.636 Hydrocharitaceae (frog's bit) 1.Egeria densa (Brazilian waterweed) W 2.Elodea (water weed) W
7. to be done: 3 3 6 6or3 4.638 Scheuchzeriaceae 1.Scheuchzeria palustris (podgrass) .....