Amoreuxia Moc. & Sessé ex DC.
  • Prodr. 2: 638 (1825)

Cite taxon page as 'WFO (2022): Amoreuxia Moc. & Sessé ex DC. Published on the Internet; Accessed on: 26 Sep 2022'

General Information

AMOREUXIA Moç. & Sessé ex DC.

Amoreuxia palmatifida Moç. & Sessé ex DC., Prodr. 1: 638. 1825.

Hierbas con cáudice leñoso subterráneo, hasta 50 cm de alto. Hojas con contorno orbicular a reniforme, con 5–9 lobos espatulados a lineares, apicalmente serradas, de otro modo subenteras, glabras. Cimas de pocas flores, pedúnculo 2.5–5 cm de largo, flores zigomorfas, 5–7.5 cm de ancho; pétalos obovados, amarillos con marcas rojas conspicuas en la base excepto el de más abajo; estambres en 2 series, rojo obscuros o amarillos; ovario imperfectamente 3-locular con placentación axial. Cápsula colgante, globosa a ovada, ca 2–4 cm de largo; semillas reniformes, ca 5 mm de largo, pilosas.

Poco común, en pastizales secos y bosques, también en vegetación secundaria, zona pacífica; 60–160 m; fl jun–jul, fr jul; Sandino 3140, 3195; Estados Unidos (Arizona) a Colombia. Un género con 4 especies distribuidas desde el sur de los Estados Unidos al norte de Sudamérica.

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

    Low herbs with woody subterranean rootstock, annual leafy shoots up to 50 cm tall; young parts sparsely pubescent, becoming completely glabrous. Leaves palmatinerved, orbicular to reniform in outline, base cordate, either subentire or deeply parted into 5-9 lobes to at least 4/5 of their length. Cymes terminal, few-flowered; peduncle 2.5-5.0 cm long. Flowers zygomorphic, 5.0-7.5 cm in diam. Sepals linear to oblong-ovate, acute, imbricate, the upper one slightly shorter. Petals yellow, obovate, base cuneate to attenuate; lower petal without marks, lateral petals with one conspicuous mark at the base, slightly asymmetric, upper petals with two conspicuous marks at the base. Stamens unequal, in two sets, filaments and anthers of the lower set slightly longer and tinged dark red; anthers with two apical and occasionally two basal pores. Ovary 3-merous, imperfectly 3-celled with axile placentation, pubescent, becoming glabrous. Style incurved, slightly longer than the lower set of stamens. Capsule globose to ovate, acute, truncate, pointing downward with incurved stalk; pericarp strong, woody, glabrous, striate; placentae united in the lower part, forming a solid and persisting column, free in the upper part, dissepimenta thin and fragile; endocarp pergamentaceous, fragile; exocarp dehiscing only partially, the endocarp remaining united marginally with the pericarp, the seeds shed through fissures of the endocarp. Seeds reniform to subglobose, glabrous, pilose or minutely echinate, seed coat adhering or crustaceous and fragile.

  • Provided by: [B].Flora Neotropica
    • Source: [
    • 3
    • ]. 


    From northern Mexico and adjacent United States through Central America to Colombia and Peru, also on Curação.

  • Provided by: [B].Flora Neotropica
    • Source: [
    • 3
    • ]. 


    SELECTED REFERENCE Sprague, T. A. 1922. A revision of Amoreuxia. Bull. Misc. Inform. Kew 1922: 96–105.

  • Provided by: [D].Flora of North America @
    • Source: [
    • 1
    • ]. 

     Information From

    World Flora Online Data. 2021.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora Neotropica
    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.
    • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora de Nicaragua
    W. D. Stevens, C. Ulloa Ulloa, A. Pool & O. M. Montiel. 2001–. Flora de Nicaragua, Tropicos Project. Loaded from Tropicos Project: October 2017
    • C 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.
    • D Flora of North America Association