OF THE CAROLINAS & GEORGIA

Monilophytes (ferns): Leptosporangiate Ferns (true ferns): Salviniales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Salvinia molesta   FAMILY Salviniaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Salvinia molesta   FAMILY Salviniaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Salvinia ×molesta

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2015)

Salvinia molesta

SYNONYMOUS WITH The Ferns and Lycophytes of Texas (Diggs & Lipscomb, 2014)

Salvinia molesta

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)

Salvinia molesta

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 2 (1993)

Salvinia molesta

(?) -

Salvinia adnata

 

COMMON NAME:
Giant Salvinia, Kariba Weed


         To see larger pictures, click or hover over the thumbnails.

image of Salvinia molesta, Giant Salvinia, Kariba Weed

Keith Bradley    kab_s_molesta_78612

August        Quebec, Canada

image of Salvinia molesta, Giant Salvinia, Kariba Weed

Keith Bradley    kab_s_molesta_78612b

August        Quebec, Canada

image of Salvinia molesta, Giant Salvinia, Kariba Weed

Keith Bradley    kab_s_molesta_78618

August        Quebec, Canada

image of Salvinia molesta, Giant Salvinia, Kariba Weed

Keith Bradley    kab_s_molesta_78620

August        Quebec, Canada

image of Salvinia molesta, Giant Salvinia, Kariba Weed

Ted D. Center, USDA Agricultural Research Service, Bugwood.org    bug_0002132

Month Unknown        

Dense, rapidly growing surface mats block sun to bottom plants and animals, per Invasive Plants, Guide to Identification, Impacts and Control (Kaufman & Kaufman, 2007).


click here to see other plants that look similar to this COMPARE aquatic plants

image of Salvinia molesta, Giant Salvinia, Kariba Weed

Barry Rice, sarracenia.com, Bugwood.org    bug_5391745

Month Unknown        

Hairs of upper leaf w 4 branches joined at tips, forming a cage-like structure, per Weakley's Flora.

image of Salvinia molesta, Giant Salvinia, Kariba Weed

Barry Rice, sarracenia.com, Bugwood.org    bug_5391745b

Month Unknown        

Hairs on the leaf surface are shaped like egg beaters, per Invasive Plants, Guide to Identification, Impacts and Control (Kaufman & Kaufman, 2007).


click here to see other plants that look similar to this COMPARE Salvinia species

image of Salvinia molesta, Giant Salvinia, Kariba Weed

Robert Vidéki, Doronicum Kft, Bugwood.org    bug_5396833

Month Unknown        

Shade-grown leaves lie flat; sunlight and crowding cause crumpling, per Invasive Plants, Guide to Identification, Impacts and Control (Kaufman & Kaufman, 2007).

image of Salvinia molesta, Giant Salvinia, Kariba Weed

Robert Vidéki, Doronicum Kft, Bugwood.org    bug_5399577

Month Unknown        

image of Salvinia molesta, Giant Salvinia, Kariba Weed

Leslie J. Mehrhoff, University of Connecticut, Bugwood.org    bug_5457880

Month Unknown        

Perhaps introduced as plants sold to aquarium and koi pond owners, per Invasive Plants, Guide to Identification, Impacts and Control (Kaufman & Kaufman, 2007).

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Salvinia molesta   FAMILY Salviniaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Salvinia molesta   FAMILY Salviniaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Salvinia ×molesta

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2015)
Salvinia molesta

SYNONYMOUS WITH The Ferns and Lycophytes of Texas (Diggs & Lipscomb, 2014)
Salvinia molesta

SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Salvinia molesta

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 2
Salvinia molesta

(?) -
Salvinia adnata

 

Find by SCIENTIFIC NAME:

1309

Fern/Fern ally; Floating aquatic (rootless)
Annual/Perennial

Habitat: Still waters of farm ponds, calcareous seepage ponds, and other situations, per Weakley's Flora

Non-native: Brazil

Rare

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.


INVASIVE

This plant is causing problems in natural areas outside its native range, according to authorities such as:

 

LEAVES:
Two simple, floating emergent leaves; & a third, divided underwater leaf
Whorls of 3

FRUIT:
Winter/Spring/Summer/Fall

 

TO LEARN MORE about this plant, look it up in a good book!



 


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