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amaranths
Amaranthus
Amaranthus is a genus of plants commonly known as amaranths. Some species are known by variants of the common name "pigweed". Some members are annual and others are perennial. The plant can grow from 1 to 2.5 metres (3 to 8 feet) tall with a succulent, hollow stem. Parts of the plant vary from green to reddish. Catkin-like cymes of densely packed flowers grow in the summer or fall.
There are 75 recognized species in the genus, some monoecious and some dioecious. The name amaranth was originally applied to the closely related genus Celosia. Amaranthus is cosmopolitan in tropical regions. Some species are cultivated as leaf vegetables, pseudocereals (with amaranth grain being collected), and ornamental plants.
60 branches of this genus, most-observed first

Amaranthus hybridus
complexAmaranthus hybridus

green amaranth
speciesAmaranthus viridis

Palmer's Amaranth
speciesAmaranthus palmeri

purple amaranth
speciesAmaranthus blitum

Prostrate Amaranth
speciesAmaranthus deflexus

prostrate pigweed
speciesAmaranthus albus

procumbent pigweed
speciesAmaranthus blitoides

Fringed Amaranth
speciesAmaranthus fimbriatus

rough-fruit amaranth
speciesAmaranthus tuberculatus

Tropical amaranth
speciesAmaranthus polygonoides

Joseph's Coat
speciesAmaranthus tricolor

Southern Amaranth
speciesAmaranthus australis

Tidalmarsh Amaranth
speciesAmaranthus cannabinus

African amaranth
speciesAmaranthus muricatus

Seabeach Amaranth
speciesAmaranthus pumilus

Gregg's Amaranth
speciesAmaranthus greggii

Watson's amaranth
speciesAmaranthus watsonii

Mat Amaranth
speciesAmaranthus graecizans

Torrey's amaranth
speciesAmaranthus torreyi

sand amaranth
speciesAmaranthus arenicola

California Pigweed
speciesAmaranthus californicus

Thunberg's Pigweed
speciesAmaranthus thunbergii

Tucson Amaranth
speciesAmaranthus tucsonensis

Amaranthus crassipes
speciesAmaranthus crassipes

Greenstripe
speciesAmaranthus acanthochiton

Tall Amaranth
speciesAmaranthus rudis
Amaranthus asplundii
speciesAmaranthus asplundii

Amaranthus dinteri
speciesAmaranthus dinteri

Amaranthus urceolatus
speciesAmaranthus urceolatus

Amaranthus crispus
speciesAmaranthus crispus

Amaranthus undulatus
speciesAmaranthus undulatus
Amaranthus sclerantoides
speciesAmaranthus sclerantoides

Amaranthus obcordatus
speciesAmaranthus obcordatus

Amaranthus macrocarpus
speciesAmaranthus macrocarpus

Amaranthus praetermissus
speciesAmaranthus praetermissus

Boggabri Weed
speciesAmaranthus mitchellii

Amaranthus squamulatus
speciesAmaranthus squamulatus

Amaranthus schinzianus
speciesAmaranthus schinzianus

Amaranthus grandiflorus
speciesAmaranthus grandiflorus

Indehiscent Pigweed
speciesAmaranthus standleyanus

Amaranthus anderssonii
speciesAmaranthus anderssonii

Amaranthus lepturus
speciesAmaranthus lepturus

Florida Amaranth
speciesAmaranthus floridanus
Amaranthus interruptus
speciesAmaranthus interruptus

Amaranthus scariosus
speciesAmaranthus scariosus

Amaranthus sparganiocephalus
speciesAmaranthus sparganiocephalus
Amaranthus persimilis
speciesAmaranthus persimilis

Amaranthus cochleitepalus
speciesAmaranthus cochleitepalus

Amaranthus clementii
speciesAmaranthus clementii
Amaranthus cuspidifolius
speciesAmaranthus cuspidifolius
Amaranthus scleropoides
speciesAmaranthus scleropoides
Amaranthus celosioides
speciesAmaranthus celosioides
Amaranthus peruvianus
speciesAmaranthus peruvianus

Cape Pigweed
speciesAmaranthus capensis
Amaranthus acanthobracteatus
speciesAmaranthus acanthobracteatus
Amaranthus tamaulipensis
speciesAmaranthus tamaulipensis
Amaranthus viscidulus
speciesAmaranthus viscidulus
Amaranthus neei
speciesAmaranthus neei
Amaranthus brandegeei
speciesAmaranthus brandegeei
Amaranthus congestus
speciesAmaranthus congestus
Where it lives
Recorded sightings
—
geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the old herbals & bestiaries

Sancai Tuhui (Vol. 106)
王圻, 王思義 · 1609 · p.72

Notable Commentaries on the History of Plants
Leonhart Fuchs · 1542 · p.208

Notable Commentaries on the History of Plants
Leonhart Fuchs · 1549 · p.132

On the Names of Plants
Hieronymus Bock (Tragus) · 1552 · p.402

History of Plants in Four Books
Valerius Cordus · 1561 · p.356

Commentaries on the Six Books of Pedanius Dioscorides on Medical Matter
Pietro Andrea Mattioli · 1565 · p.1219

Florum et coronariarum historia
Rembert Dodoens · 1568 · p.94

Hortus Eystettensis
Basilius Besler · 1640 · p.359

Illustrated Compendium of Materia Medica (Vol. 12)
吳其濬 · 1848 · p.9

Herbarium Portatile, Oder Behendes Kräuter- und Gewächs-Buch: Darinn nicht allein 1363. so wol Einheimische als Außländndische Kräuter mit Lateinisch und Deutscher Benennung abgebildet, sondern auch die meisten, so in der Medicin gebräuchlich, kürtzlich erkläret werden
Panckow, Thomas · 1656 · p.224

Herbarium Portatile, Oder Behendes Kräuter- und Gewächs-Buch: Darinn nicht allein 1363. so wol Einheimische als Außländndische Kräuter mit Lateinisch und Deutscher Benennung abgebildet, sondern auch die meisten, so in der Medicin gebräuchlich, kürtzlich erkläret werden
Panckow, Thomas · 1656 · p.171
In the stacks
Searching the stacks…
Every page naming Amaranthus in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 52326.