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Alternanthera flavescens Kunth
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Alternanthera flavescens
© Copyright Bobby Hattaway 2011 · 5
Alternanthera flavescens

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Alternanthera flavescens
© Copyright Bobby Hattaway 2011 · 5
Alternanthera flavescens
Alternanthera flavescens
© Copyright Bobby Hattaway 2011 · 5
Alternanthera flavescens

Alternanthera flavescens
© Copyright Bobby Hattaway 2011 · 5
Alternanthera flavescens
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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=ALFL ---> https://plants.usda.gov/java/profile?symbol=ALFL
https://plants.usda.gov/java/profile?symbol=ALFL ---> http://plants.usda.gov/core/profile?symbol=ALFL
http://plants.usda.gov/core/profile?symbol=ALFL ---> https://plants.usda.gov/core/profile?symbol=ALFL
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Alternanthera flavescens Kunth
yellow joyweed

General Information
Symbol: ALFL
Group: Dicot
Family: Amaranthaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : L48   N
PR   N
VI   N
Data Source and Documentation
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Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   




Symbol Scientific Name
ACRA2 Achyranthes ramosissima auct. non (Mart.) Standl.
ALFL4 Alternanthera floridana (Chapm.) Small
ALRA3 Alternanthera ramosissima auct. non (Mart.) Chod.


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Caryophyllidae
Order Caryophyllales
Family Amaranthaceae – Amaranth family
Genus Alternanthera Forssk. – joyweed
Species Alternanthera flavescens Kunth – yellow joyweed

Subordinate Taxa

This plant has no children

Legal Status

Noxious Weed Information
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete noxious weed list for that location, or click here for a composite list of all Federal and State Noxious Weeds .
Arkansas Alternanthera
alligatorweed Noxious weed

Wetland Status

Interpreting Wetland Status

Related Links

More Accounts and Images
Flora of North America (ALFL)
Integrated Taxonomic Information System (ACRA2)
Integrated Taxonomic Information System (ALFL)
Integrated Taxonomic Information System (ALFL4)
Integrated Taxonomic Information System (ALRA3)
USF Atlas of Florida Vascular Plants (ALFL)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from Flora of North America
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Link to Flora of North America home
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FNA Vol. 4 Page 448 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 4 | Amaranthaceae | Alternanthera

2. Alternanthera flavescens Kunth in A. von Humboldt et al., Nov. Gen. Sp. 2: 207. 1818.

Yellow joyweed

Achyranthes ramosissima (Martius) Standley; Alternanthera ramosissima (Martius) Chodat

Herbs, perennial, 6-15 dm. Stems ascending to spreading, often clambering, pubescent, glabrate. Leaves sessile; blade ovate to lanceolate or elliptic, 1.8-8 × 0.5-3 cm, herbaceous, apex long-acuminate or acute, sparsely strigose or glabrous. Inflorescences terminal and axillary, pedunculate; heads yellowish white, subglobose to cylindric, 0.9-2.5(-4) × 0.9-1 cm; bracts keeled, less than 1 /2 as long as tepals. Flowers: tepals monomorphic, green, lanceolate, 3.4-4.7 mm, apex acute, villous, hairs not barbed; stamens 5; pseudostaminodes ligulate, margins laciniate. Utricles included within tepals, greenish yellow, ellipsoid, 2.5 mm, apex acute. Seeds ovoid, 1.2-1.3 mm.

Flowering year-round. Coastal hammocks, thickets, sand bars; 0 m; introduced; Fla.; Mexico; West Indies; South America.

Alternanthera flavescens has long been known as A. ramosissima (Martius) Standley.

Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Alternanthera+flavescens&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Alternanthera+flavescens&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Query: SELECT * FROM img WHERE ready=1 and taxon like "Alternanthera flavescens%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

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Alternanthera flavescens
Alternanthera flavescens
Yellow Joyweed
ID: 0000 0000 0107 1947 [detail]
© 2007 Matt Below

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