Caperonia palustris (L.) A.St.-Hil.
  • Hist. Pl. Remarq. Brésil
  • Sacatrapo, Texasweed

Cite taxon page as 'WFO (2020): Caperonia palustris (L.) A.St.-Hil. Published on the Internet; Accessed on: 26 Oct 2020'

General Information

Herbs, 25–100 cm; indumentum of glandular and nonglandular hairs, glandular hairs coarse, erect, thick-based, and gland-tipped (especially abundant on stems and petioles). Stems erect, moderately to densely hairy, with gland-tipped hairs and finer, usually appressed, nonglandular hairs; older stems 4–7 mm diam. Leaves: petiole 0.3–2.5(–3.5) cm; blade narrowly ovate, lanceolate, or linear-lanceolate, 6–15 × (0.6–)1–6 cm (L/W = 2–7(–11)), base usually rounded or obtuse, rarely acute, apex acute or narrowly acute, surfaces glabrescent or sparsely, mostly appressed-hairy. Inflorescences 2–14 cm, peduncle 1–7 cm, fertile portion 1–9 cm, with (1–)2–4 pistillate flowers. Staminate flowers: petals narrowly obovate, 1.4 mm, ± equal, not or somewhat exerted beyond calyx. Pistillate flowers: sepals ovate or elliptic, longest 2–3.2 mm, becoming 3.5–5.5 mm in fruit; petals 1–2(–2.4) mm; ovary densely covered in bulbous-based, gland-tipped trichomes. Capsules 5–7 mm wide, trichomes conic proximally, hairlike distally, gland-tipped. Seeds brown, 2.5–3 mm diam. 2n = 22.

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

    Caperonia palustris (L.) A. St.-Hil., Hist. Pl. Remarq. Brésil 245. 1824; Croton palustris L.

    Plantas 0.1–1 m de alto; tallos en general no obviamente fistulosos y huecos, hirsutos con tricomas simples y glandulares. Hojas ovadas o lanceoladas hasta linear-lanceoladas, 4–12 cm de largo y 0.5–5 cm de ancho, redondeadas a agudas en el ápice, obtusas a subcordadas en la base; pecíolos 0.5–2.5 cm de largo, estípulas lanceoladas, 2–4.5 mm de largo. Racimos 3–7 cm de largo; flores estaminadas con pétalos ca 1.5 mm de largo; flores pistiladas con sépalos desiguales, los más largos 3–5 mm de largo, con frecuencia copiosamente estipitado-glandulares en los márgenes y en la superficie inferior, pétalos 1.5–2 mm de largo, ovario muricado pero no estrigoso. Cápsula 5–5.7 mm de ancho, verrugosa; semillas 2.4–2.8 mm de largo.

    Común en zanjas y pantanos, en todas las zonas del país; 0–800 m; fl y fr may–dic; Kral 69122, Moreno 10639; sur de los Estados Unidos a Argentina.

  • Provided by: [F].Flora de Nicaragua
    • Source: [
    • 3
    • ]. 

    Herb, usually annual, taprooted and also often rooting at the lower nodes; stems erect, subterete, striate, sometimes fistulose, usually not with prominent aerenchyma at base, ca 3-10 dm high, hirsute with gland-tipped hairs intermixed with appressed, relatively inconspicuous, sharp-pointed hairs. Leaves membranous; petioles 1.5-2.5 mm long, usually hispidulous and prominently pubescent with glandular hairs; stipules lanceolate, 2-4.5 mm long, 0.5-1.1 mm broad, often mar- ginally ciliate with glandular and/or non-glandular hairs; blades variable in shape (ovate or elliptic to lanceolate or even linear lanceolate), mostly 4-10(-12) cm long, 0.5-5 cm broad, sparsely pubescent (with both glandular and non- glandular hairs) to glabrate on both sides, the midrib and veins (ca 6-15 on a side) prominent, the primary veins straight, the secondaries tenuous, perpendicular to primaries (venation thus ? scalariform), the base obtuse or rounded to sub- cordate, the margins rather sharply serrate and minutely scabrous, with ca (10-) 15-35 teeth on a side, the apex broadly rounded to more often distinctly narrowed or pointed. Racemes spiciform, mostly 4-7 cm long, with (1-)2 or 3(-5) basal 9 and several distal c flowers; rachis hispidulous throughout, usually with glandular setae at least on the peduncle; bracts acute, persistent, glabrous. Sta- minate flowers with short glabrous pedicels; calyx glabrous, acutely lobed; petals 5, subequal, obovate, ca 1.5 mm long; stamens 10, the upper filaments as long as or longer than anthers, the lower filaments nearly contiguous to upper ones, shorter than the anthers, the anthers ca 0.5 mm long; pistillode apically 2-4-lobed, 0.6-0.8 mm high. Pistillate flowers subsessile, the very short glabrous pedicels less than 1 mm long even in fruit; calyx-lobes 5-9, usually unequal (with 4-6 larger inner lobes and 1-4 smaller outer ones), flattish, thin, not ribbed, acute, ordinarily copiously glandular-hirsute on margins and back, the longer ones ca 3.5-5 mm long in fruit; petals subequal, narrowly elliptic, pointed, (0.8-)1.3-1.9 mm long, 0.3-0.7 mm broad, not exserted beyond the calyx-lobes, + deciduous; ovary glabrous proximally, densely glandular-muricate distally, the styles 1.1-1.7 mm long, usually deeply 5-7-lobed, the lobes slender. Capsules 5.1-5.7 mm in diam, stramineous-green with dark green verrucae; seeds spheroidal, fuscous, 2.4-2.7 mm in diam.

  • Provided by: [E].Flora de Panama
    • Source: [
    • 4
    • ]. 

    Hierba, 0.3–2 m, los tallos a veces ± esponjosos, esparcida a densamente pubescentes con tricomas glandulares. Hojas con la lámina 3–14 X 1.5–4.5 cm, linear a elíptica, oblonga u ovado-oblonga, aserrada. Infls. 3–7 cm. Fls. pistiladas con los sépalos glandular-ciliados. Frs. 0.4–0.7 cm, muricados.

  • Provided by: [H].Manual de Plantas de Costa Rica
    • Source: [
    • 5
    • ]. 


    A widespread neotropical weed, usually of ditches, swamps, and other wet habitats, occurring from Florida and Louisiana south to Argentina and Uruguay.

  • Provided by: [E].Flora de Panama
    • Source: [
    • 4
    • ]. 

    Distribution Map

    • Native distribution
    Found in
    • Southern America Brazil Amapí
    • Parí
    • Maranh
    • Minas Gerais
    • Goiás

    Other Local Names

    Sacatrapo, Texasweed

     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).
    MBG Floras Images
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • C Missouri Botanical Garden
    • D Missouri Botanical Garden
    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
    • E Missouri Botanical Garden
    Flora de Nicaragua
    WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
    • F Missouri Botanical Garden
    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.
    • G 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
    • H Missouri Botanical Garden
    World Flora Online consortium
    World Flora Online Data. 2018.
    • I CC0 1.0 Universal (CC0 1.0).