Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Caryophyllales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Alternanthera sessilis
FAMILY
Amaranthaceae
Go to FSUS key
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
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Alternanthera sessilis
SYNONYMOUS WITH Flora of North America
Alternanthera sessilis
COMMON NAME:
Sessile Joyweed
To see larger pictures, click or hover over the thumbnails.
)
USDA APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org bug_0015010
Month Unknown
)
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 OF THE SOUTHEASTERN US (4/24/22):
Alternanthera sessilis
FAMILY
Amaranthaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Alternanthera sessilis
FAMILY
Amaranthaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Alternanthera sessilis
SYNONYMOUS WITH
Flora of North America
Alternanthera sessilis
2948
Terrestrial or occasionally aquatic; Forb
Perennial
Habitat: Disturbed wet muck, per Weakley's Flora
Non-native: Tropics
Rare
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
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
5 sepals
Petals absent
5 stamens, united at base
Bisexual
Flowers in axillary spikes
FRUIT:
Spring/Summer/Fall
Utricle
TO LEARN MORE about this plant, look it up in a good book!
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".