Ruellia blechum L.
  • Syst. Nat. ed. 10

Cite taxon page as 'WFO (2020): Ruellia blechum L. Published on the Internet; Accessed on: 29 May 2020'

General Information

Herbs to 50 cm tall. Roots lacking tuberlike swellings. Stems slightly 4-angled, often prostrate and rooting at nodes, sparsely pubescent to subglabrous. Petiole 0.5-2.5 cm, strigose; leaf blade ovate, 3-6 × 2-4 cm, abaxially paler and subglabrous, adaxially green, sparsely strigose and densely pilose along veins, secondary veins 5-8 on each side of midvein, base obtuse to rounded and slightly decurrent onto petiole, margin entire, apex acute. Inflorescences terminal, dense spikes, 2-6 cm, subsessile to shortly pedunculate; rachis strigose; bracts subleaflike, ovate, ca. 1.5 × 1.3 cm, abaxially slightly pubescent, margin ciliate; bracteoles 2, lanceolate-ovate, 5-9 × 1.5-3 mm, margin ciliate. Calyx lobes linear to subulate, outside pilose. Corolla white to pale blue, ca. 1.5 cm (cleistogamous flowers sometimes present, these much smaller and budlike), outside puberulent on lobes; lobes ovate, ca. 3 × 2 mm. Stamens with longer pair ca. 4 mm and shorter pair ca. 3 mm; filaments glabrous; anther thecae ca. 1 mm. Ovary comose; style 6-10 mm, slightly hirsute; stigma usually with only 1 lobe evident. Capsule substipitate, ovoid to ellipsoid, ca. 6 mm, puberulent, 8-12-seeded; septa with attached retinacula separating from inner wall of mature capsule. Seeds ca. 1.5 mm in diam., margin with a conspicuous band of appressed hygroscopic trichomes. Fl. Nov, fr. Nov. 2n = 34.

  • Provided by: [F].Flora Of CHina @
    • Source: [
    • 1
    • ]. 

    Ruellia blechum L., Syst. Nat. (ed. 10) 2: 1120. 1759; Barleria pyramidata Lam.; Blechum pyramidatum (Lam.) Urb.; Blechum brownei Juss.;  Blechum brownei f. puberulum Leonard.

    Hierbas erectas a inclinadas, hasta 0.5 m de alto; tallos más jóvenes cuadrangulares, aplicado-puberulentos. Hojas ovadas a ovado-lanceoladas, 2–6.5 cm de largo y 1–3 cm de ancho, ápice agudo, base cuneada a obtusa, márgenes crenados a enteros, escasamente pilosas a glabras; pecíolos hasta 1.4 cm de largo, pubérulos. Inflorescencias terminales, 1.5–7 cm de largo, pedúnculos hasta 15 mm de largo, aplicado-puberulentos, brácteas ovadas, 7.5–14 mm de largo, ápice agudo, base redondeada, laxamente estrigosas y densamente pubérulas, márgenes ciliados, bractéolas lanceoladas, 5 mm de largo, ciliadas; sépalos 3 mm de largo y 0.5 mm de ancho, ciliolados; corola 10–15 mm de largo, blanca volviéndose rosado pálida a lila con la edad. Frutos claviformes, ca 6 mm de largo, 3 mm de ancho y 1 mm de grueso.

    Común, áreas perturbadas en todo el país; 0–1300 m; fl ene–jul, fr feb–jul; Neill 4498, Stevens 5905; centroeste y oeste de México a Sudamérica, naturalizada en los trópicos del Viejo Mundo.

  • Provided by: [E].Flora de Nicaragua
    • Source: [
    • 2
    • ]. 

    Distribution Map

    • Introduced distribution
    Introduced into
    • Southern America Brazil Bahia
    • Pernambuco
    • Rio de Janeiro
    • São Paulo
    • Goiás

     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
    • C Missouri Botanical Garden
    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
    • D Group Brazil Flora, REFLORA Program
    Flora de Nicaragua
    WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
    • E Missouri Botanical Garden
    Flora Of CHina @
    'Flora of China @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • F Missouri Botanical Garden