Aquatic Weed Identification - ucanr.edu · From C. A. Lembi 1997 Algae. PlanktonicAlgae. Algae...
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Aquatic Weed Aquatic Weed Identification Identification
Transcript of Aquatic Weed Identification - ucanr.edu · From C. A. Lembi 1997 Algae. PlanktonicAlgae. Algae...
Aquatic WeedAquatic Weed
IdentificationIdentification
From C. A. Lembi1997
Algae
Planktonic Algae
Algae Bloom
Filamentous Algae -- Floating Mats
Chara sp.
NitellaNitella spp.
Each of the four types of aquatic plants favors a certain water depth. Typically, however, the growth areas are not sharply divided. Expect to see overlap in growth--submerged plants, for example, interspersed among floating-leaf varieties.
Types of Aquatic Plants
Pacific mosquitofernAzolla filiculoides
Common duckweedLemna minor
Water hyacinthEichhornia crassipes
F M M J J A S O N DJ A
After Kautsky, 1987
Seasonal Development of Sago Pondweed
CoontailCeratophyllum demersum
ParrotfeatherMyriophyllum aquaticum
Western watermilfoilMyriophyllum hippuroides
An uncommon native speciesnot considered weedy
Eurasian watermilfoilMyriophyllum spicatum
Northern watermilfoilMyriophyllum sibiricum
Eurasian watermilfoil
HydrillaHydrilla verticillata
Brazilian egeriaEgeria densa
Common elodeaElodea canadensis
Curlyleaf pondweedPotamogeton crispus
Sago pondweedStuckenia pectinatus
Leafy pondweedPotamogeton foliosus
Floatleaf pondweedPotamogeton natans
AmericanPondweed
Potamogetonnodosus
Creeping waterprimroseLudwigia peploides
Purple loosestrifeLythrum salicaria
Purple loosestrife vegetation
Giant horsetailEquisetum telmateia ssp. braunii
ScouringrushEquisetum hyemale ssp. affine
Giant reedArundo donax
Common cattailTypha latifolia
Hardstem bulrushScirpus acutus var. occidentalis
Pale smartweedPolygonum lapathifolium
Perennial pepperweedLepidium latifolium
Curlydock
Rumexcrispus
Himalaya blackberryRubus armeniacus
