Spermatophytes (seed plants): Angiosperms (flowering plants): Monocots: Alismatales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Hydrilla verticillata
FAMILY
Hydrocharitaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Hydrilla is most similar to Egeria, but it possesses prickles along the leaf margins and also on the central leaf vein beneath. Read more at Vascular Plants of North Carolina.
Aquatic weeds can clog irrigation channels and cover lakes, threatening crops and wildlife. Read more -- Outlawed! Federal Noxious Weeds: The Aquatics.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Hydrilla verticillata
FAMILY
Hydrocharitaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Hydrilla verticillata
SYNONYMOUS WITH Flora of North America
Hydrilla verticillata
COMMON NAME:
Hydrilla
To see larger pictures, click or hover over the thumbnails.
Keith Bradley kab_h_verticillata_74746
June Miami-Dade County FL
South Dade Wetlands
Stems and leaves near the surface look like bottle brushes, per Invasive Plants, Guide to Identification, Impacts and Control (Kaufman & Kaufman, 2007).
COMPARE aquatic plants
JK Marlow jkm160914_166
September
SE-EPPC Aquatic Plant ID Workshop
Fresh leaves noticeably rough to the touch, per Weakley's Flora (2015).
JK Marlow jkm160914_166b
September
SE-EPPC Aquatic Plant ID Workshop
Leaves mostly 1-2cm long, with stout sharp teeth on margins and midrib beneath, per Weakley's Flora.
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Hydrilla verticillata
FAMILY
Hydrocharitaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Hydrilla verticillata
FAMILY
Hydrocharitaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Hydrilla verticillata
SYNONYMOUS WITH
Flora of North America
Hydrilla verticillata
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".