1. Family: Amaranthaceae Juss.
    1. Aerva Forssk.

      1. This genus is accepted, and its native range is Tropical & Subtropical Old World.

    [FZ]

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

    Habit
    Perennial herbs (sometimes flowering in the first year), prostrate to erect or scandent.
    Leaves
    Leaves and branches opposite or alternate, leaves entire.
    Flowers
    Flowers hermaphrodite or dioecious, sometimes probably polygamous, bibracteolate, in axillary and terminal sessile or pedunculate bracteate spikes, one flower in the axil of each bract.
    Perianth
    Perianth segments 5, oval, or lanceolate-oblong, membranous margined with a thin to wider green centre, the perianth deciduous with the fruit but bracts and bracteoles persistent.
    Androecium
    Stamens 5, shortly monadelphous at the base, alternating with subulate or rarely narrowly oblong and truncate or emarginate pseudostaminodes; anthers bilocular.
    Pistil
    Ovary with a single pendulous ovule; style very short to slender and distinct; stigmas 2, short to long and filiform (sometimes solitary and capitate, flowers then probably functionally male).
    Fruits
    Capsule thin-walled, bursting irregularly.
    Seeds
    Seed compressed-reniform, firm, black.
    [FTEA]

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

    Habit
    Perennial herbs (sometimes flowering in the first year), prostrate to erect or scandent
    Leaves
    Leaves and branches opposite or alternate, leaves entire
    Flowers
    Flowers hermaphrodite or dioecious, sometimes probably polygamous, bibracteolate, in axillary and terminal sessile or pedunculate bracteate spikes, one flower in the axil of each bract
    Perianth
    Perianth-segments 5, oval- or lanceolate-oblong, membranous-margined with a thin to wider green centre, the perianth deciduous with the fruit but bracts and bracteoles persistent
    Stamens
    Stamens 5, shortly monadelphous at the base, alternating with subulate or rarely narrowly oblong and truncate or emarginate pseudostaminodes; anthers bilocular
    Pistil
    Ovary with a single pendulous ovule; style very short to slender and distinct; stigmas 2, short to long and filiform (sometimes solitary and capitate, flowers then probably functionally ♂)
    Fruits
    Capsule thin-walled, bursting irregularly
    Seeds
    Seed compressed-reniform, firm, black.

    Images

    Distribution

    Native to:

    Afghanistan, Algeria, Angola, Bangladesh, Benin, Botswana, Burkina, Burundi, Cambodia, Cameroon, Cape Provinces, Cape Verde, Central African Repu, Chad, Chagos Archipelago, China South-Central, China Southeast, Cocos (Keeling) Is., Congo, Djibouti, East Himalaya, Egypt, Eritrea, Ethiopia, Free State, Ghana, Gulf of Guinea Is., Gulf States, Hainan, India, Iran, Ivory Coast, Jawa, Kenya, KwaZulu-Natal, Laccadive Is., Laos, Lesser Sunda Is., Liberia, Libya, Madagascar, Malawi, Malaya, Maldives, Mali, Mauritania, Mauritius, Morocco, Mozambique, Myanmar, Namibia, Nepal, New Guinea, Niger, Nigeria, Northern Provinces, Oman, Pakistan, Palestine, Philippines, Rodrigues, Rwanda, Saudi Arabia, Senegal, Seychelles, Sierra Leone, Sinai, Socotra, Somalia, Sri Lanka, Sudan, Swaziland, Taiwan, Tanzania, Thailand, Togo, Uganda, Vietnam, West Himalaya, Western Sahara, Yemen, Zambia, Zaïre, Zimbabwe

    Extinct in:

    Hawaii

    Introduced into:

    Myanmar, Nicobar Is.

    Aerva Forssk. appears in other Kew resources:

    First published in Fl. Aegypt.-Arab.: 170 (1775)

    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: 37.
    Flora Zambesiaca
    • Fl. Aegypt.-Arab.: 170 (1775) nomen cons.
    Flora of Tropical East Africa
    • Fl. Aegypt.–Arab.: 170 (1775), nom. conserv.

    Sources

    Flora Zambesiaca
    Flora Zambesiaca
    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

    Kew Backbone Distributions
    The International Plant Names Index and World Checklist of Selected Plant Families 2019. 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 2019. 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

    Plants and People Africa
    Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/
    © Plants and People Africa http://www.plantsandpeopleafrica.com http://creativecommons.org/licenses/by/3.0/