Assertion: cattail's rhizome | /r/HasProperty | high
Facets:
value: in protein
type: OTHER
value: in starch
type: OTHER
Source sentences:
text: The rhizomes are high in starch and can be grounded into flour.
text: Native Americans would parch the edible rhizomes (seeds), which are high in protein and very starchy, grind them into a powder for flour, mixed it with water, boiled it and ate it as porridge.