Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Lamiales
WEAKLEY'S FLORA (5/21/15):
Hygrophila polysperma
FAMILY
Acanthaceae
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
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:
Hygrophila polysperma
FAMILY
Acanthaceae
SYNONYMOUS WITH
Guide to the Vascular Plants of Florida (Wunderlin & Hansen, 2011)
Hygrophila polysperma
COMMON NAME:
East Indian Swampweed, East Indian Hygrophila, Miramar Weed, Hygro
No pictures are available at this time.
WEAKLEY'S FLORA (5/21/15):
Hygrophila polysperma
FAMILY
Acanthaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Hygrophila polysperma
FAMILY
Acanthaceae
SYNONYMOUS WITH
Guide to the Vascular Plants of Florida (Wunderlin & Hansen, 2011)
Hygrophila polysperma
4142
Emergent aquatic (rooted); Forb
Annual/Perennial
Non-native: East Indies
Documented growing wild in - - SC
Rare
Look for it in lakes, rivers, canals (it is grown for the aquarium trade and sporadically introduced to bodies of water), per Weakley's Flora
Click here to see a more detailed map from University of North Carolina at Chapel Hill Herbarium,
or click here to see a map from SERNEC, a consortium of southeastern herbaria.
This plant is causing problems in natural areas outside its native range, according to authorities such as:
- SC Department of Natural Resources Aquatic Nuisance Species List, 2003
- SC List of Regulated Pest Plant Species, 2017
- USDA Federal Noxious Weeds, 091820
LEAVES:
Simple
Opposite
Petioles to 5mm long
Margins entire
FLOWER:
Summer/Fall
White
Bisexual
5-lobed calyx
2-lipped corolla
4 fertile stamens
Superior ovary
Flowers in terminal and axillary spikes
FRUIT:
WinterFall
Capsule
TO LEARN MORE about this plant, look it up in a good book!