Cyperus reflexus Vahl
  • Enum. Pl. Obs.


Cite taxon page as 'WFO (2021): Cyperus reflexus Vahl. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000381088. Accessed on: 24 Oct 2021'

General Information

Herbs, perennial, cespitose; rhizomes elongate, scaly, 2–3 mm wide. Culms roundly trigonous to terete, 30–80 cm × 1–1.6 mm, glabrous. Leaves 1–6, 10–40 cm, glabrous or essentially so. Inflorescences: heads ovoid to pyramidal, 9–15 mm diam.; rays 0 or 3–6, 0.5–4 cm, glabrous; bracts 3–4, longest erect, appearing as continuation of culm, others horizontal to ascending, 4–17 cm × 1.5–4 mm. Spikelets 25–60, reddish with contrasting yellowish or greenish edges, oblong-lanceoloid, strongly compressed, 5–6(–15) × 1.5–2.5 mm; floral scales 10–22, laterally reddish, medially yellowish green, 2-keeled, laterally strongly 1-ribbed on each side, proximally grooved, ovate-elliptic, 1.4–2.2 × 0.8–1.5 mm, apex acute, apically scabridulous (sometimes glabrous). Flowers: stamen 1; anthers 0.6–1 mm; styles 0.3–0.5 mm; stigmas 0.3–0.6 mm. Achenes reddish brown, stipitate, ovoid-ellipsoid, 0.8–0.9 × 0.3–0.4 mm, stipe 0.1–0.2 mm, apex acute to acuminate, surfaces reticulate or subtly rugulose.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    Plantas perennes, cespitosas; culmos hasta ca. 60 cm, lisos. Hojas 1–6, 10–40 cm, más cortas a tan largascomo los culmos, la vaina conspicuamente septado-nodulosa; lámina 2 – 9 mm de ancho. Infl. con brácteas folii-formes; rayos 0–6, hasta ca. 4 cm; rayos secundarios ausentes; cabezuelas ovoides a piramidales, hasta ca. 1.5 cm de ancho. Espiguillas 4–6 × 1.5–3 mm, oblongo-lanceoladas, comprimidas; raquilla sin alas; glumasovado-elípticas, agudas, múticas, la línea media verde a verde amarillento, los lados pardos a negro rojizo. Fls.con 1 estambre. Aquenios 1.8–2 × ca. 0.5 mm, elipsoides, trígonos, acuminados, apiculados, lisos, pardos.

  • Provided by: [C].Manual de Plantas de Costa Rica
    • Source: [
    • 2
    • ]. 

    Distribution Map

     
    • Native distribution
    Found in
    • Southern America Brazil Paraní
    • Rio Grande do Sul
    • Santa Catarina
    • Espirito Santo
    • Minas Gerais
    • Rio de Janeiro
    • São Paulo
    • Mato Grosso do Sul

     Information From

    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
    • A Group Brazil Flora, REFLORA Program
    Cyperaceae
    • B CC0 1.0 Universal (CC0 1.0).
    Manual de Plantas de Costa Rica
    http://www.tropicos.org/Project/Costa%20Rica
    Hammel, B. E.; Grayum, M. H.; Herrera, C.; Zamora, N. Manual de Plantas de Costa Rica. Missouri Botanical Garden Press, 2003-2014
    • C Missouri Botanical Garden
    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
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).