Dysphania ambrosioides (L.) Mosyakin & Clemants
  • Ukrayinsk. Bot. Zhurn.
  • Mexican-tea, wormseed


Cite taxon page as 'WFO (2020): Dysphania ambrosioides (L.) Mosyakin & Clemants. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000658867. Accessed on: 06 Apr 2020'

General Information

Herbs annual or perennial, 50-80 cm tall, with strong odor. Stem erect, much branched, striate, obtusely ribbed; branches usually slender, pubescent and articulated villous, sometimes subglabrous. Petiole short; leaf blade oblong-lanceolate to lanceolate, abaxially with scattered glands, slightly hairy around veins, adaxially glabrous, base attenuate, margin sparsely and irregularly coarsely serrate, apex acute or acuminate; lower leaves ca. 15 × 5 cm, upper ones gradually reduced and margin subentire. Flowers borne in upper leaf axils, usually 3-5 per glomerule, bisexual and female. Perianth segments (3 or)5, usually nearly closed in fruit. Stamens 5; anthers ca. 0.5 mm. Style obscure; stigmas 3(or 4), filiform, exserted from perianth. Utricle enclosed by perianth, depressed globose. Seed horizontal or oblique, black or dark red, sublustrous, ca. 0.7 mm in diam., glabrous, rim margin obtuse. Fl. and fr. over a lengthy period.

  • Provided by: [E].Flora Of CHina @ efloras.org
    • Source: [
    • 1
    • ]. 

    Plants annual. Stems erect to ascending, much-branched, 3-10(-15) dm, ± glandular-pubescent. Leaves aromatic, distal leaves sessile; petiole to 18 mm; blade ovate to oblong-lanceolate or lanceolate, proximal ones mostly lanceolate, 2-8(-12) × 0.5-4(-5.5) cm, base cuneate, margins entire, dentate, or laciniate, apex obtuse to attenuate, copiously gland-dotted (rarely glabrous). Inflorescences lateral spikes, 3-7 cm; glomerules globose, 1.5-2.3 mm diam.; bracts leaflike, lanceolate, oblanceolate, spatulate, or linear, 0.3-2.5 cm, apex obtuse, acute, or attenuate. Flowers: perianth segments 4-5, connate for ca. 1/2 their length, distinct portion ovate, rounded abaxially, 0.7-1 mm, apex obtuse, glandular-pubescent, covering seed at maturity; stamens 4-5; stigmas 3. Achenes ovoid; pericarp nonadherent, rugose to smooth. Seeds horizontal or vertical, reddish brown, ovoid, 0.6-1 × 0.4-0.5 mm; seed coat rugose to smooth.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 2
    • ]. 

    Morphology

    Erect herb, up to 1 m high. Leaves lanceolate, up to 100 mm long and 40 mm broad, margins entire, dentate or laciniate, upper surface glabrous, lower surface covered with sessile yellow glands. Inflorescences axillary spikes. Flowers green.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Annual herb, up to 1 m high. Stems erect. Leaves with blade oblong, ovate-lanceolate, irregularly sinuately repand, up to 100 x 40 mm, margins entire, dentate or laciniate, upper surface glabrous, lower surface covered with sessile, yellow glands. Flowers: in many-clustered, false spikes or pseudopanicles; perianth segments ovate-triangular, remaining green for a long time; Oct.-Apr.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Habitat

    Disturbed places.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Vredefort Dome Savanna; Kalahari Deciduous Acacia-wooded Grassland; Dry Grassland; Mesic Grassland; Dwarf Karroid Shrubland. Disturbed places.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Distribution

    Native of Central America.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 3
    • ]. 

    Native to Australia.

  • Provided by: [C].e-Flora of South Africa
    • Source: [
    • 4
    • ]. 

    Distribution Map

     
    • Introduced distribution
    Introduced into
    • Southern America Brazil Acre
    • Amapí
    • Amazonas
    • Parí
    • Rondônia
    • Roraima
    • Tocantins
    • Alagoas
    • Bahia
    • Ceará
    • Maranh
    • Paraába
    • Pernambuco
    • Piauá
    • Rio Grande do Norte
    • Sergipe
    • Paraní
    • Rio Grande do Sul
    • Santa Catarina
    • Espirito Santo
    • Minas Gerais
    • Rio de Janeiro
    • São Paulo
    • Brazilia Distrito Federal
    • Goiás
    • Mato Grosso
    • Mato Grosso do Sul

    Synonyms

    Other Local Names

    NameLanguageCountry
    Mexican-tea, wormseed

      Bibliography

     Information From

    Amaranthaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Brazilian Flora 2020 project - Projeto Flora do Brasil 2020
    http://floradobrasil.jbrj.gov.br
    Brazil Flora G (2014): Brazilian Flora 2020 project - Projeto Flora do Brasil 2020. v393.147. Instituto de Pesquisas Jardim Botanico do Rio de Janeiro. Dataset/Checklist. doi:10.15468/1mtkaw
    • B Group Brazil Flora, REFLORA Program
    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute. http://ipt.sanbi.org.za/iptsanbi/resource?r=flora_descriptions&v=1.21
    • C All Rights Reserved
    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • D Flora of North America Association
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • E Missouri Botanical Garden
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • F CC0 1.0 Universal (CC0 1.0).