How are Limnocharis flava and Sagittaria trifolia used as vegetables or animal fodder?

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Flowering rush — Alismatales Showy and delicate flowers of the flowering rush (*Butomus umbellatus*).

In the context of the Alismatales order, Limnocharis flava and Sagittaria trifolia serve specific agricultural and dietary roles:

Vegetable use: In Java, juvenile plants of Limnocharis flava (yellow velvetleaf) are highly esteemed as a vegetable.1
Animal fodder and fertilizer: Both Limnocharis flava and Sagittaria trifolia (threeleaf arrowhead) are collected in tropical Africa, India, and Southeast Asia to be used as fertilizer and as fodder for cattle and pigs.1

While these species have historical and regional utility, the nutritional significance of most plants within the Alismatales order is considered minor in the modern world, with the notable exception of taro.1