Commelina diffusa Burm.f.
  • Fl. Indica

Cite taxon page as 'WFO (2021): Commelina diffusa Burm.f. Published on the Internet; Accessed on: 28 Sep 2021'

General Information

2. Commelina diffusa Burm. f., Fl. Indica 18 (1768). Tipo: India, Burmann s.n. (G).

Por D.R. Hunt.

Commelina longicaulis Jacq., C. nudiflora sensu Burm. f. (1768), non L.

Tallos ascendentes, ramificándose y enraizando en los nudos. Hojas 2.5-6 x 1-2 cm, lanceoladas a ovado-lanceoladas, generalmente obtusas, redondeadas en la base, casi glabras. Pedúnculos muy cortos o hasta 5 cm; espata 8-20 x 5-10 mm, subovada, aguda o acuminada, glabra o ciliolada, los márgenes redondeados en la parte dorsal, libres; cimas con 1-3 flores, la inferior generalmente sólo con flores estaminadas, la superior con flores bisexuales. Sépalos 3-4 mm; pétalos superiores 4-5 mm, azules; pétalo inferior muy reducido o casi obsoleto, azul pálido o blanquecino. Cápsulas generalmente con 5 semillas; semillas negras. 2n=30. Matorrales húmedos, claros, tierras cultivadas. T (Guadarrama et al. 269, MEXU); Ch (Matuda 4818, NY); Y (Lundell 1124, NY); B (Gentle 1016, NY); G (Ortíz 408, NY); H (Molina R. 22229, NY); ES (Tucker 528, NY); N (Molina 14836, NY); CR (Brenes 23102, NY); P (Burch et al. 1282, NY). 0-1600 m. (Florida, México a Argentina, Antillas.)

  • Provided by: [E].Flora Mesoamericana
    • Source: [
    • 1
    • 9
    • ]. 

    Herbs annual. Stems creeping, branched (sometimes at every node), to more than 1 m, glabrous or hispidulous throughout or in a line. Leaves subsessile; leaf sheath hispid or hispid-ciliate, with red lines; leaf blade lanceolate or proximal ones oblong, 3--12 × 0.8--3 cm, glabrous or hispid. Involucral bracts borne opposite leaves, folded, ovate-lanceolate, 1--4 cm, glabrous or hispidulous abaxially, base cordate or rounded, apex acuminate or shortly so. Cincinni dichotomously branched from base; 1 branch with 1.5--2 cm long peduncle and 1--4 long-exserted male flowers; other branch with much shorter peduncle and 3--5 bisexual flowers included in involucral bracts; pedicels thick and curved, ca. 3 mm, to 5 mm in fruit. Sepals 3--4 mm, membranous. Petals blue, 2 longer ones 4.2--6 mm. Capsule oblong, trigonous, ca. 5 mm, 3-valved; posterior valve with 1 seed, indehiscent; other 2 valves each with 2 seeds, dehiscent. Seeds black, ovoid-globose, ca. 2 mm, reticulate. Fl. May--Nov.

  • Provided by: [H].Flora Of CHina @
    • Source: [
    • 7
    • ]. 

    Herbs, perennial or annual, spreading. Stems decumbent to scandent. Leaves: blade narrowly lanceolate to lanceolate-oblong, lanceolate-elliptic or ovate, 1.5--14 × 0.5--3.3 cm, margins scabrous, apex acute to acuminate, glabrous. Inflorescences: distal cyme 1--several-flowered, usually exserted; spathes solitary, bright green, without contrasting veins, pedunculate, usually distinctly falcate, (0.5--)0.8--4 ´ 0.4--1.2(--1.4) cm, margins distinct, glabrous or scabrous, sometimes also sparsely ciliate or ciliolate basally, apex usually acuminate, usually glabrous or nearly so; peduncles 0.5--2(--4) cm. Flowers bisexual and staminate; petals all blue (rarely all lavender), proximal petal smaller; medial stamen anther connective usually with transverse band of violet; staminodes 2--3; antherodes yellow, medial often absent or vestigial, cruciform. Capsules 3-locular, 2-valved, 4--6.3 mm. Seeds 5 (or less through abortion), brown, 2--2.8(--3.2) ´ 1.4--1.8 mm, deeply reticulate.

  • Provided by: [K].Flora of North America @
    • Source: [
    • 8
    • ]. 

    Commelina diffusa Burm. f., Fl. Indica 18. 1768; C. longicaulis Jacq.

    Perennes; tallos postrados a ascendentes, enraizando en los nudos. Hojas lanceoladas u ovado-lanceoladas, 2.5–6 cm de largo y 1–2 cm de ancho, generalmente obtusas en el ápice, redondeadas en la base, casi glabras. Inflorescencias cimas con 1–3 flores, pedúnculos muy cortos o más de 5 cm de largo, espata semiovada, 8–20 mm de largo y 5–10 mm de ancho, aguda o acuminada, márgenes redondeados en la parte dorsal, libres, glabra o ciliada, cima inferior en general sólo con flores masculinas, la superior con flores bisexuales; sépalos 3–4 mm de largo; pétalos superiores 4–5 mm de largo, azules, el inferior mucho más reducido a obsoleto, azul pálido o blanquecino. Cápsula seca y dehiscente; semillas generalmente 5, negras.

    Común, áreas perturbadas húmedas, en todas las zonas del país; 15–1400 m; fl y fr todo el año; Moreno 10173, Ortiz 1453; Estados Unidos (Florida), México a Argentina, también en las Antillas. Ha sido erróneamente identificada como C. nudiflora.

  • Provided by: [I].Flora de Nicaragua
    • Source: [
    • 10
    • ]. 

    Weak, creeping, subsucculent annuals, glabrous throughout. Leaves ovate- or oblong-elliptic, obtuse or acute, sessile or subsessile, 1-3 cm. long; sheaths 0.5-1.0 cm. long. Inflorescence terminal, the spathe foliaceous, conduplicate, ovate- cordate, open and rounded at the base. Flowers few, pale blue; sepals 0.2-0.25 cm. long; 2 posterior petals narrowly clawed, 0.3-0.5 cm. long, the anterior rudimentary or obsolete.

  • Provided by: [G].Flora de Panama
    • Source: [
    • 11
    • ]. 

    Tallos ca. 20–50 cm, difusamente ramificados y conraíces en los nudos. Hojas 2.5–6 × 1–2 cm, lanceo-ladas a ovado-lanceoladas, usualmente redondeadas enla base, agudas a acuminadas en el ápice, casi glabras;vaina ciliada, los pelos incoloros. Infls. solitarias;pedúnculo muy corto o hasta ca. 5 cm, puberulento aglabro; espata 0.8–2 × 0.5–1 cm, subovada, cordadaen la base, aguda a acuminada en el ápice, glabra o pu-bescente, los márgenes separados. Fls. con sépalos 3–4 mm; pétalos superiores azules, el inferior azul.Frs. capsulares, ca. 5 mm, ovoide-alargados, trilocu-lares, bivalvados, los lóculos ± lisos, uno indehis-cente; semillas usualmente 4 ó 5, profundamente fo-veoladas, negras o café.

  • Provided by: [L].Manual de Plantas de Costa Rica
    • Source: [
    • 12
    • ]. 

    "Fibrous-rooted annual, diffusely branched, decumbent and rooting from the lower nodes, to 1 m; lf-blades lanceolate, the larger 3–8(–11) × 1–1.5(–2) cm; sheaths 0.5–1 cm; spathe (folded) semicordate and ± falcate, 1.5–2.5 cm, nearly as wide, acute or short-acuminate, glabrous or finely ciliate, its margins free, its stalk 1–2 cm; larger spathes usually with a 1–few-fld upper cyme in addition to the well developed lower one; blade of upper pet 6–8 mm; lower median pet blue; anthers 5 or 6 (2 or 3 sterile); fr 3-locular, the lower locules each 2-seeded, the upper one 1-seeded; seeds of the lower locules 2–2.8(–3.2) mm, deeply reticulate; 2n=28–60. Wet woods and river-banks; native to the Old World, only intr. in N. Amer., where mainly in se. U.S., n. sometimes to Del., O., Ill., Minn., and Kans."

  • Provided by: [F].New York Botanical Garden
    • Source: [
    • 13
    • ]. 


    Annual or perennial hygrophilous spreading herbs sometimes covering large stretches of ground, creeping stems forming short, erect side branches, rooting at nodes. Leaves linear to ovate or oblong, 50-140 x 15-25 mm, apex acuminate, glabrous or puberulous, margins often encrusted with white pustules. Spathes pedunculate, folded, broad and acute to long and attenuate. Upper cyme exserted on an erect, glabrous or pubescent peduncle, (l-)2(-3)-flowered, rarely aborted; lower peduncle pubescent, with 3-8 bisexual flowers. Sepals white, membranous. Petals blue or white. Stamens with yellow, red, blue or black filaments and anthers. Capsule quadrate; 2 ventral locules 2-seeded, dorsal locule indehiscent, fusiform, 1-seeded, or empty; seeds reniform, reticulate with tuberculate hexagonal areoles.

  • Provided by: [D].e-Flora of South Africa
    • Source: [
    • 15
    • ]. 


    A widely distributed pantropical innocuous hygrophytic weed.

  • Provided by: [D].e-Flora of South Africa
    • Source: [
    • 15
    • ]. 


    Nearly cosmopolitan; very common in waste places in Panama, at widely varying altitudes.

  • Provided by: [G].Flora de Panama
    • Source: [
    • 11
    • ]. 

    Southern Africa recorded from South West Africa/Namibia, Botswana, Transvaal, Swaziland, Natal to eastern and southern Cape.

  • Provided by: [D].e-Flora of South Africa
    • Source: [
    • 15
    • ]. 

    Distribution Map

    • Native distribution
    Found in
    • Southern America Brazil Acre
    • Amazonas
    • Tocantins
    • Alagoas
    • Bahia
    • Ceará
    • Paraába
    • Pernambuco
    • Sergipe
    • Paraní
    • Rio Grande do Sul
    • Santa Catarina
    • Espirito Santo
    • Minas Gerais
    • Rio de Janeiro
    • São Paulo
    • Brazilia Distrito Federal
    • Goiás
    • Mato Grosso
    • Mato Grosso do Sul

     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
    e-Flora of South Africa
    e-Flora of South Africa. v1.21. 2018. South African National Biodiversity Institute.
    • D All Rights Reserved
    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
    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
    Flora de Panama
    Robert E. Woodson, Jr. and Robert W. Schery Annals of the Missouri Botanical Garden Vol. 67, No. 4 (1980), pp. ii-xxxiii
    • G 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.
    • H Missouri Botanical Garden
    Flora de Nicaragua
    WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
    • I 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
    • J Group Brazil Flora, REFLORA Program
    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.
    • K 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
    • L Missouri Botanical Garden
    World Flora Online consortium
    World Flora Online Data. 2018.
    • M CC0 1.0 Universal (CC0 1.0).