Skip to main content
This genus is accepted, and its native range is Tropical & Subtropical Old World.
Achyranthes aspera Achyranthes aspera pubescens (Amaranthaceae)

[FSOM]

M. Thulin et al. Flora of Somalia Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Herbs, rarely shrubs or trees, with opposite, entire leaves
Morphology Reproductive morphology Flowers
Flowers in elongating bracteate spikes, solitary in the axils of the bracts, usually sharply deflexed along the inflorescence axis in fruit, bracteoles spinous-aristate with the excurrent midrib
Morphology Reproductive morphology Flowers Tepal
Tepals 4–5, 1–3(–5)-nerved, narrowly lanceolate, the outer 2 slightly longer
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 2–5, the filaments monadelphous below, alternating with quadrate to quadrate-spathulate staminodes which are commonly furnished with a variably developed dorsal scale
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 1-ovulate
Morphology Reproductive morphology Flowers Gynoecium Style
Style slender, stigma capitate
Morphology Reproductive morphology Fruits
Capsule irregularly rupturing by the thin walls, apex firm, falling with the perianth and bracteoles.
Distribution
About fourteen species in the warm temperate and tropical regions of the world.

[FTEA]

Amaranthaceae, C.C. Townsend. Flora of Tropical East Africa. 1985

Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary with a solitary pendulous ovule, the ovary wall very thin in fruit; style slender; stigma small, truncate-capitate
Morphology Reproductive morphology Seeds
Endosperm copious. Entire flower with bracteoles falling with the ripening of the cylindrical seed, the deflexed bracts persistent
Morphology General Habit
Herbs with opposite, petiolate, entire leaves
Morphology Reproductive morphology Inflorescences
Inflorescence a ± slender spike, terminal on the stem and branches, the flowers at first congested and ± patent, finally usually laxer and deflexed; bracts deltoid or ovate, the midrib excurrent in a spine
Morphology Reproductive morphology Flowers
Flowers solitary in the bracts, hermaphrodite, bibracteolate
Morphology Reproductive morphology Flowers Perianth
Perianth-segments 4–5, 1–3(–5)-nerved, narrowly lanceolate, acuminate, aristate with the excurrent midrib, indurate in fruit especially at the base
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles spinous-aristate with the excurrent midrib, the lamina forming short and free to longer and adnate membranous wings
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 2–5; filaments filiform, monadelphous, alternating with quadrate to broadly quadrate-spathulate pseudostaminodes, these simple and dentate or fimbriate, or furnished with a variably developed dorsal scale; anthers bilocular

[FZ]

Amaranthaceae, C. C. Townsend. Flora Zambesiaca 9:1. 1988

Morphology General Habit
Herbs with opposite, petiolate, entire leaves.
Morphology Reproductive morphology Inflorescences
Inflorescence a more or less slender spike, terminal on the stem and branches, the flowers at first congested and patent, finally usually laxer and deflexed; bracts deltoid or ovate, the midrib excurrent in a spine.
Morphology Reproductive morphology Flowers
Flowers solitary in the bracts, hermaphrodite, bibracteolate.
Morphology Reproductive morphology Flowers Perianth
Perianth segments 4–5, 1–3(5) nerved, narrowly lanceolate, acuminate, mucronate with the excurrent midrib, indurate in fruit especially at the base.
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles spinous-aristate with the excurrent midrib, the lamina forming short and free to longer and adnate membranous wings.
Morphology Reproductive morphology Flowers Androecium
Stamens 2–5, filaments filiform, monadelphous, alternating with quadrate to broadly quadrate-spathulate pseudostaminodes, these simple and dentate or fimbriate, or commonly furnished with a variably developed dorsal scale; anthers bilocular.
Morphology Reproductive morphology Flowers Gynoecium Style
Style slender, stigma small, truncate-capitate.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary with a solitary pendulous ovule, the ovary wall very thin in fruit.
Morphology Reproductive morphology Seeds
Entire flower with bracteoles falling with the ripening of the cylindrical seed, the deflexed bracts persistent. Endosperm copious.

Native to:

Afghanistan, Aldabra, Algeria, Andaman Is., Angola, Assam, Bangladesh, Benin, Bismarck Archipelago, Borneo, Botswana, Burkina, Burundi, Cambodia, Cameroon, Canary Is., Cape Provinces, Cape Verde, Caroline Is., Central African Repu, Chad, Chagos Archipelago, China North-Central, China South-Central, China Southeast, Christmas I., Cocos (Keeling) Is., Comoros, Congo, Djibouti, East Himalaya, Egypt, Eritrea, Ethiopia, Free State, Gabon, Gambia, Ghana, Gilbert Is., Guinea, Guinea-Bissau, Gulf of Guinea Is., Gulf States, Hainan, Hawaii, India, Iran, Italy, Ivory Coast, Japan, Jawa, Kazan-retto, Kenya, Korea, KwaZulu-Natal, Laccadive Is., Laos, Lebanon-Syria, Lesotho, Lesser Sunda Is., Liberia, Line Is., Madagascar, Madeira, Malawi, Malaya, Maldives, Mali, Maluku, Marianas, Marquesas, Marshall Is., Mauritania, Mauritius, Morocco, Mozambique, Mozambique Channel I, Myanmar, Namibia, Nansei-shoto, Nauru, Nepal, New Guinea, Nicobar Is., Niger, Nigeria, Norfolk Is., Northern Provinces, Northern Territory, Ogasawara-shoto, Oman, Pakistan, Panamá, Philippines, Pitcairn Is., Queensland, Rodrigues, Rwanda, Réunion, Samoa, Sardegna, Saudi Arabia, Selvagens, Senegal, Sicilia, Sierra Leone, Society Is., Socotra, Solomon Is., Somalia, South China Sea, Spain, Sri Lanka, Sudan, Sulawesi, Sumatera, Swaziland, Taiwan, Tanzania, Thailand, Tibet, Tokelau-Manihiki, Tuamotu, Tubuai Is., Tunisia, Tuvalu, Uganda, Vietnam, Wallis-Futuna Is., West Himalaya, Western Australia, Western Sahara, Yemen, Zambia, Zaïre, Zimbabwe

Introduced into:

Alabama, Aruba, Austria, Azores, Bahamas, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil Southeast, Brazil West-Central, Colombia, Cook Is., Costa Rica, Cuba, Dominican Republic, El Salvador, Fiji, Florida, French Guiana, Galápagos, Guatemala, Guyana, Haiti, Honduras, Illinois, Jamaica, Kentucky, Kermadec Is., Leeward Is., Louisiana, Maryland, Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest, Netherlands Antilles, New Caledonia, New Zealand North, Nicaragua, Niue, Ohio, Ontario, Palestine, Peru, Primorye, Puerto Rico, Seychelles, South Carolina, Southwest Caribbean, St.Helena, Suriname, Tennessee, Texas, Tonga, Trinidad-Tobago, Turks-Caicos Is., Vanuatu, Venezuela, Venezuelan Antilles, West Virginia, Windward Is.

Achyranthes L. appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Leeuwenberg, A.J.M. [8496], Cameroon K000025612
Cheek, M. [7706], Cameroon K000086522

First published in Sp. Pl.: 204 (1753)

Accepted by

  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 529. MIM, Deurne.

Literature

Flora of West Tropical Africa

  • —F.T.A. 6, 1: 62.

Flora of Somalia

  • Flora Somalia, Vol 1, (1993) Author: by C. C. Townsend [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • L., Gen. Pl., ed. 5: 96 (1854)
  • Sp. Pl.: 204 (1753)

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Neotropikey
Milliken, W., Klitgard, B. and Baracat, A. (2009 onwards), Neotropikey - Interactive key and information resources for flowering plants of the Neotropics.
http://creativecommons.org/licenses/by/3.0