Lythrum L.
  • Sp. Pl. 1: 446. 1753. (1 May 1753)


Cite taxon page as 'WFO (2021): Lythrum L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000022585. Accessed on: 21 Oct 2021'

General Information

9. Lythrum L.

Por S.A. Graham.

Hierbas perennes o sufrútices. Tallos frecuentemente con 4 ángulos prominentes o angostamente alados, glabros, verde-grisáceo glauco. Hojas opuestas a alternas, ovadas a lanceoladas, frecuentemente más pálidas en el envés, sésiles o subsésiles. Inflorescencias racemosas. Flores solitarias o apareadas en los nudos, 6-meras, actinomorfas, dimorfas, con estambres y estilos de 2 longitudes; bractéolas subyacentes lineares a ovadas; tubo floral cilíndrico, por lo menos 2 veces más largos que anchos, conspicuamente (8-)12-acostillados; lobos del cáliz 6, c. 1/6 tan largos como el tubo floral; apéndices tan largos como los lobos del cáliz o más largos, alternando con éstos; pétalos 6, purpúreos, rosados o blancos; estambres 6, insertados aproximadamente a la mitad del largo del tubo floral, en 2 verticilos; ovario sésil, 2-locular, la base rodeada por un anillo glandular; estigma capitado. Cápsulas oblongas, cartilaginosas, con dehiscencia septicida o septífraga desde el ápice, 2-valvadas, las valvas 2-lobadas, la placenta retenida dentro de la cápsula; semillas numerosas, menos de 1 mm, ovoides, pardas. 35 spp. Cosmopolita, especialmente en las zonas templadas del norte.

  • Provided by: [B].Flora Mesoamericana
    • Source: [
    • 5
    • ]. 

    Annual or perennial herbs or shrubs; young branches 4-angled. Leaves opposite, alternate, or 3-whorled, sessile or subsessile. Flowers in terminal spikes or racemes, whorled in cymes, paired, or solitary in axils, 6-merous, [mono-, di-, or] trimorphic, shortly pedicellate. Floral tube elongate, cylindric [rarely broadly campanulate], 6-12-angled or -veined; sepals 6, generally short; epicalyx present, sometimes longer than sepals. Petals [absent to] 6, purple, rose, pink [or white]. Stamens [2-6 or]12, in two whorls of different lengths. Ovary 2-loculed; style of three lengths with capitate stigma below, above, or between two stamen whorls. Capsule elongated, included within persistent floral tube, 2-valved, valves often 2-lobed, dehiscence usually septicidal at apex. Seeds numerous, red-brown, elongate, bilaterally compressed, ca. 1 mm.

  • Provided by: [A].Flora Of CHina @ efloras.org
    • Source: [
    • 6
    • ]. 

    "Fls 6-merous, often dimorphic or trimorphic as to the style and stamens; hypanthium cylindric or narrowly campanulate, 8–12-nerved; sep short, alternating with appendages in the sinuses; pet red-purple to white; stamens (4–)6 or 12; ovary bilocular, with or without a disk; style slender; capsule septicidal or septifragal, enclosed by the persistent hypanthium; herbs or shrubs, usually virgately branched, with opposite, alternate, or whorled lvs and numerous bibracteolate fls sessile in the axils or in small cymes aggregated into a terminal spike-like thyrse. 30, ± cosmopolitan."

  • Provided by: [F].New York Botanical Garden
    • Source: [
    • 7
    • ]. 

    Morphology

    Flowers 4–6(–8)-merous, regular or obscurely irregular, often di- or trimorphic, axillary, solitary or in cymes, sometimes congested into raceme-like “terminal” inflorescences

  • Provided by: [E].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Calyx tubular or ± campanulate, the sinus-appendages obvious or ± obsolete

  • Provided by: [E].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Perennial or annual herbs, rarely subshrubby

  • Provided by: [E].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Leaves decussate, verticillate or alternate

  • Provided by: [E].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Ovary ± sessile, oblong or ovoid, incompletely bilocular; ovules numerous; style usually well developed, rarely almost lacking; stigma capitate

  • Provided by: [E].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Capsule 2-valved; valves sometimes ± bilobed, membranous to ± coriaceous

  • Provided by: [E].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Petals mostly conspicuous, rarely lacking

  • Provided by: [E].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Stamens (1–)4–12, inserted near base of tube, some or all exserted, the ventrals and dorsals often inserted at different heights

  • Provided by: [E].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Seeds 8 to numerous.

  • Provided by: [E].Plants Of the World Online Portal - FTEA
    • Source: [
    • 4
    • ]. 

    Herbes'annuelles ou vivaces, plus rarement arbustes.'Feuilles'décussées, verticillées ou alternes.'Inflorescences'axillaires, en cymes dichasiales spiciformes ou racémiformes, ou fleurs solitaires.'Fleurs'4-6(8)-mères, parfois obscurément zygomorphes, souvent hétérostylées di- ou trimorphes; réceptacle campanulé ou cylindrique; calice muni ou non d'appendices alternisépales; pétales le plus souvent grands, rarement 0; étamines (1)4-12; ovaire sessile ou courtement stipité, pluri- à multiovulé, incomplètement 2-loculaire au sommet; style présent, plus rarement peu distinct.'Capsules'à 2 valves, souvent bilobées, cartilagineuses, submembraneuses ou subcoriaces, à cloison n'atteignant pas le sommet.'Graines 8-∞, petites.\n\t\t\t\tGenre cosmopolite groupant ± 30 espèces; pour la Flore, 1 espèce.

  • Provided by: [C].Flore d'Afrique Centrale
    • Source: [
    • 8
    • ]. 

      Bibliography

     Information From

    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.
    • A Missouri Botanical Garden
    Flora Mesoamericana
    http://www.mobot.org/MOBOT/fm/
    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
    • B Missouri Botanical Garden
    Flore d'Afrique Centrale
    https://www.floredafriquecentrale.be
    • C http://creativecommons.org/licenses/by/4.0/ Attribution 4.0 International (CC BY 4.0)
    Lythraceae
    World Flora Online Data. 2017.
    • D CC0 1.0 Universal (CC0 1.0).
    Plants Of the World Online Portal - FTEA
    https://www.kew.org/science/who-we-are-and-what-we-do/strategic-outputs-2020/plants-of-the-world-online
    http://www.plantsoftheworldonline.org/terms-and-conditions
    • E
    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.
    • F Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • G CC0 1.0 Universal (CC0 1.0).