Echinodorus berteroi (Spreng.) Fassett
  • Rhodora

Cite taxon page as 'WFO (2020): Echinodorus berteroi (Spreng.) Fassett. Published on the Internet; Accessed on: 27 Oct 2020'

General Information

2. Echinodorus berteroi (Sprengel) Fassett, Rhodora 57: 139 (1955).

Por A. Lot H. y A. Novelo R.

Alisma berteroi Sprengel, Syst. Veg. 2: 163 (1825). Holotipo: Guadalupe, Bertero s.n. (GOET).

Echinodorus berteroi (Sprengel) Fassett var. berteroi, E. berteroi var. patagonicus (Speg.) Rataj, E. cordifolius sensu Standley (1930), non (L.) Griseb., E. patagonicus Speg.

Rizoma corto y grueso. Hojas erectas, variables en tamaño y forma; pecíolos hasta 30 cm; láminas hasta 7 x 7 cm, las emergentes generalmente ovadas a ampliamente ovadas, las sumergidas lineares a estrechamente elípticas, con líneas pelúcidas, la base ligeramente cordata, el ápice obtuso. Inflorescencia compuesta, ramificada en los verticilos inferiores; escapos hasta 85 cm, erectos, triangulares desde la base; verticilos 4-6, cada uno con 3-10 flores. Brácteas 0.4-1.8 cm, libres, lanceoladas; pedicelos 1.2-2.2 cm, erectos. Sépalos c. 5 mm, acostillados, reflexos; pétalos c. 1.5 cm, blancos; estambres 12; anteras (0.7-)1-1.4 mm, versátiles. Cabezuelas fructíferas 0.7-0.8 x 0.6-0.7 cm, globosas u ovoides, desnudas; aquenios 1.7-2.4 x 0.8-1.2 mm, ligeramente obovoides, con quilla amplia, con 3-6 costillas, comúnmente con 1 o 2 alas, sin glándulas o con 1 cerca de la base del pico estilar; pico estilar (0.5-)0.8-1.3 mm, apical. Bordes de lagos, lagunas, pantanos, charcas estacionales. Y (Millspaugh 1692bis, US). 0-100 m. (N. Estados Unidos, México, S. Argentina, Antillas.)

  • Provided by: [E].Flora Mesoamericana
    • Source: [
    • 1
    • 3
    • ]. 

    Herbs, annual or perennial, stout, to 70 cm; rhizomes present. Leaves emersed or submersed; submersed leaves mostly absent; petiole terete to triangular, 2--36 cm; blade with translucent markings present as distinct lines, elliptic, lanceolate, or ovate, 2.6--15.5 ´ 0.5--20 cm, base truncate or occasionally cordate to tapering. Inflorescences racemes, rarely panicles, of 1--9 whorls, each 1--3(--4)-flowered, erect, 1.5--40 ´ 1.7--50 cm, not proliferating; peduncles 3--5-ridged, 2.1--57 cm; rachis triangular; bracts distinct, lanceolate, 0.3--2.5 cm, coarse, margins scarious; pedicels spreading to ascending, 0.6--2.8 cm. Flowers 6--11 mm wide; sepals spreading to recurved, 9--13-veined, veins not papillate; petals clawed; stamens 9--15; anthers versatile; pistils 45--200. Fruits oblanceolate, plump, 3--5-ribbed, abaxially 2-keeled, 0.9--3.2 ´ 0.6--2.5 mm; glands 1--2; beak terminal, 0.6--1.3 mm. 2n = 22.

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

    "Erect annual, slender or often robust, 1–6 dm; lvs erect, long-petiolate, with ± ovate, basally ± cordate blade mostly 4–20 × 2–12 cm, or in small forms the blade smaller, more lanceolate, and tapering to the base, in submersed forms the blade very thin and crisped; pellucid lines of the lvs (visible in transmitted light) mostly less than 1 mm apart and often several mm long; scape simple or branched, with usually several or many whorls of 3–8 fls on stiffly ascending pedicels; bracts lanceolate or linear, 3–6 mm; sep ovate, acute, 4–5 mm, ± reflexed in fr, the veins smooth, scarcely raised; pet white, broadly ovate, 5–10 mm; stamens (9)12 or more; anthers 0.5–0.8 mm; versatile; achenes 40+, brown, 2.5–3.5 mm, the erect to oblique beak 0.5–1 mm, up to half as long as the body, the fruiting head 3–7 mm thick, echinate in profile; each side of the achene with 5 arching ribs, 2 of them wing-like and alternating with the others, the keel entire; each side of the nutlet with a lanceolate, acuminate gland toward the top, entering the base of the beak. In swamps and ditches; often on sandy soil; C. Amer. and W.I. to Calif., Tex., and n. in the Mississippi R. drainage to O., Ill., and S.D. June–Oct. (E. rostratus; E. cordifolius, misapplied) Our plants, as here described, are var. lanceolatus (Engelm.) Fassett."

  • Provided by: [C].New York Botanical Garden
    • Source: [
    • 4
    • ]. 

     Information From

    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    MBG Floras Images
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • B Missouri Botanical Garden
    New York Botanical Garden
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    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.
    • D Flora of North America Association
    Flora Mesoamericana
    Gerrit Davidse, Mario Sousa Sánchez, A. O. Chater, Universidad Nacional Autónoma de México. Instituto de Biología, Missouri Botanical Garden, Natural History Museum (London, England) UNAM, 1994
    • E Missouri Botanical Garden
    World Flora Online consortium
    World Flora Online Data. 2018.
    • F CC0 1.0 Universal (CC0 1.0).