Scleria lacustris C.Wright
  • Anales Acad. Ci. Méd. Habana

Cite taxon page as 'WFO (2020): Scleria lacustris C.Wright. Published on the Internet; Accessed on: 23 Feb 2020'

General Information

Plants annual; rhizomes absent; roots purplish brown to black, fibrous. Culms mostly solitary or few together, stout, 60–180 cm, strongly retrorsely scabrous. Leaves: proximal sheaths purplish, winged, strongly ribbed, sparsely pubescent; contra-ligule triangular; blades linear, M-shaped in cross section, shorter than culms, 10–25 mm wide, glabrous, retrorsely scabrous on midrib, mid lateral veins, and margins. Inflorescences: axillary 2–4, terminal 1, stalked panicles, open paniculate, terminal panicle 7–14 cm with numerous short fascicles 4–8 mm wide, of 2–5 spikelets; bracts subtending inflorescence leaflike, broadly attenuate, ± equaling inflorescence, antrorsely scabrous. Spikelets bisexual and staminate, few flowered, 3.8–5 mm; staminate scales narrowly ovate, pistillate scales purple with prominent green keel, broadly ovate, abruptly acuminate. Achenes greenish to whitish or sometimes mottled gray, shiny, rounded-trigonous to ± circular, ovoid, 3.4–3.8 × 2.3–2.8 mm, smooth, apex rounded; hypogynium whitish to pale brown, bluntly 3-angled, low.

  • Provided by: [C].Flora of North America @
    • Source: [
    • 1
    • ]. 

    Plantas perennes, cespitosas (o con un culmo solitario); culmos erguidos, 80–100 cm, trígonos, fuertes, es-cábridos. Hojas más cortas que los culmos; vaina alada, estrigosa, purpúrea; contralígula redonda, membranácea;lámina 4–8 mm de ancho, escábrida. Infl. de 2 ó 3 panículas terminales y axilares, las ramas ascendentes y rígi-das, escábridas. Espiguillas fasciculadas, con bractéolas setáceas subyacentes; espiguillas masculinas 4–5 mm;espiguillas femeninas 3–4 mm, las glumas más cortas o tan largas como el aquenio, mucronadas. Fls. pistiladascon hipoginio trilobado, glabro, los lobos muy pequeños. Aquenios 3.5–4 × 2.5–2.8 mm, ovoides, lisos, blan-cos, lustrosos.

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

    Distribution Map

    • Native distribution
    Found in
    • Southern America Brazil Amazonas
    • Parí
    • Roraima

     Information From

    Brazilian Flora 2020 project - Projeto Flora do Brasil 2020
    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
    • B CC0 1.0 Universal (CC0 1.0).
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • C Flora of North America Association
    Manual de Plantas de Costa Rica
    Hammel, B. E.; Grayum, M. H.; Herrera, C.; Zamora, N. Manual de Plantas de Costa Rica. Missouri Botanical Garden Press, 2003-2014
    • D Missouri Botanical Garden
    World Flora Online consortium
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).