Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Caryophyllales
WEAKLEY'S FLORA (11/30/12):
Alternanthera sessilis
FAMILY
Amaranthaceae
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Alternanthera sessilis
FAMILY
Amaranthaceae
COMMON NAME:
Sessile Joyweed
To see larger pictures, click or hover over the thumbnails.
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USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org bug_0015010
Month Unknown
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Julia Scher, Federal Noxious Weeds Disseminules, USDA APHIS ITP, Bugwood.org bug_5376308
Month Unknown
)
Julia Scher, Federal Noxious Weeds Disseminules, USDA APHIS ITP, Bugwood.org bug_5376309
Month Unknown
WEAKLEY'S FLORA (11/30/12):
Alternanthera sessilis
FAMILY
Amaranthaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Alternanthera sessilis
FAMILY
Amaranthaceae
2948
Terrestrial or occasionally aquatic; Forb
Perennial
Non-native: Tropics
Documented growing wild in GA - SC
Rare in GA & SC
Look for it in disturbed wet muck, 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:
- Georgia Exotic Pest Plant Council, 2006
- SC List of Regulated Pest Plant Species, 2017
- Tennessee Exotic Pest Plant Council, 2009
- USDA Federal Noxious Weeds, 091820
LEAVES:
Simple
Opposite
FLOWER:
Spring/Summer/Fall
White
Bisexual
5 sepals
Petals absent
5 stamens, united at base
Flowers in axillary spikes
FRUIT:
Spring/Summer/Fall
Utricle
TO LEARN MORE about this plant, look it up in a good book!