Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Closely 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. Read more at Vascular Plants of North Carolina.
Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Alismatales
WEAKLEY'S FLORA (5/21/15):
Egeria densa
FAMILY
Hydrocharitaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Egeria densa
FAMILY
Hydrocharitaceae
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 028-01-001:
Egeria densa
FAMILY
Hydrocharitaceae
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Anacharis densa
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933)
Philotria densa
COMMON NAME:
Brazilian Waterweed, Brazilian Egeria, "Brazilian Elodea", "Anacharis"
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JK Marlow jkm160914_140
September
SE-EPPC Aquatic Plant ID Workshop
This is the "Elodea" or "Anacharis" of the aquarium trade, per Weakley's Flora (2012).
)
JK Marlow jkm160914_141
September
SE-EPPC Aquatic Plant ID Workshop
Leaves mostly 2-3cm long, finely toothed w slender, weak teeth on the margins, per Weakley's Flora.
COMPARE
aquatic plants