Vascular Plants of North Carolina
Account for Brazilian Waterweed - Egeria densa   Planchon
Members of Hydrocharitaceae:
Only member of Egeria in NC.
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Section 5 » Order Hydrocharitales » Family Hydrocharitaceae
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DistributionMore-or-less throughout the state, with the largest gaps in northern Piedmont and Mountains. First collected in NC in 1947 in Wake County.

Native of South America; in N.A. mostly in the Southeastern states and CA.
AbundanceUncommon to frequent; but no doubt overlooked. Appparently very rare in the northwestern Piedmont and parts of the Mountains.
HabitatDisturbed or nutrient-rich (including pollution) streams, rivers, impoundments, artificial ponds.
IdentificationClosely resembles Elodea, but has leaves in whorls of 5+ (vs. 3) and flowers have 3 bright white petals. Closely resembles the federal noxious weed Hydrilla but leaves have extremely slender marginal prickles and lack prickles along midvein beneath.
Taxonomic Comments
Other Common Name(s)
State RankSE
Global RankG5
State Status
US Status
USACE-agcpOBL link
USACE-empOBL link
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