Descripcion

Subshrubs to shrubs 1–2.5 m tall, erect. Branches pubescent, trichomes simple and fasciculate, both minute, in apical portion sometimes ferrugineous, occasional fasciculate-stipitate and multiradiate-stipitate. Stipules 0.9–1 cm long., long-lanceolate, free, caducous, tomentose, trichomes fasciculate. Leaves with petiole 2–10 cm long, tomentose, trichomes fasciculate, minute and fasciculate-stipitate; lamina 3–15 × 2.2–10 cm, membranaceous to chartaceous, green discolor, cordiforme, base cordate or subcordate, rarely with imbricate lobes, apex acute, acuminate or cuspidate, margin entire to undulate; abaxial surface tomentose to velutinous, trichomes hyaline, simple, glandular and fasciculate; adaxial surface velutine, trichomes hyaline, fasciculate and multiradiate. Synflorescence frondose-bracteate, pyramidal, lax; coflorescence double-raceme, 25–35 cm long; accessory axis reduced, 2(–3) flowers; anthopodium 2.5–3 cm long, pubescent, trichomes fasciculate, simple and sparsely fasciculate-stipitate. Flowers with pedicel 10–12 mm long, indument and trichomes similar those of the to anthopodium; calyx 2–3 mm long, sepals free to the middle below to medium portion, not accrescent in fruit, adaxial surface pubescent, trichomes fasciculate, rarely fasciculate-stipitate; abaxial surface sericeous, trichomes simple, long; corolla 1–1.2 cm diam, yellow, without dark center; staminal column with few trichomes, hyaline, simple and fasciculate-stipitate, free portion of filaments ca. 2 mm long, rarely trichomes hyaline, simple; ovary 4–5–celled, 3 ovules per cell; style ca. 3 mm long. Schizocarp 0.8–0.9 cm diam, 4(–5) mericarps, 8–9 × 3–4 mm, spines < 1 mm long, constriction inconspicuous, glabrescent to puberulous, trichomes glandular; seeds 3, < 2 mm long, hilum puberolous, trichomes simple.

Distribucion y Habitat

It occurs in the U. S. A., Mexico, the West Indies, Venezuela, Colombia, Bolivia, Paraguay, Argentina, and Brazil. In Brazil, the species is found in all regions, but it is rare in the northeastern region.

Ejemplares de referencia

Colector N° Colect. Especie Departamento Provincia Imagen
  • Ahumada, O.
    		• 6730 Santo Tomé Corrientes
  • Arbo, M. M.
    		• 9165 San Martín Corrientes
  • Biganzoli, F.
    		• 117 Libertador General San Martín Misiones
  • Chiarini, F.
    		• 846 Mburucuyá Corrientes
  • Fortunato, R. H.
    		• 6260 Pilagás Formosa
  • Gamerro, J. C.
    		• 158 General Manuel Belgrano Misiones
  • Hassler, E.
    		• 173 Cordillera
  • Hassler, E.
    		• 1555 Cordillera
  • Holmberg, E. L.
    		• 125 San Ignacio Misiones
  • Jörgensen, P.
    		• 2319 Bermejo Chaco
  • Jörgensen, P.
    		• 3055 -
  • Keller, H. A.
    		• 162 Eldorado Misiones
  • Keller, H. A.
    		• 5650 Concepción Misiones
  • Krapovickas, A.
    		• 11343 San Cosme Corrientes
  • Krapovickas, A.
    		• 11411 Saladas Corrientes
  • Krapovickas, A.
    		• 16827 Santo Tomé Corrientes
  • Krapovickas, A.
    		• 24236 Ituzaingó Corrientes
  • Krapovickas, A.
    		• 47733 Ledesma Jujuy
  • Medina, B. R.
    		• 292 San Ignacio Misiones
  • Morrone, O.
    		• 1073 San Ignacio Misiones
  • Osten, C.
    		• 9033 San Bernardino Cordillera
  • Rambo, B.
    		• 46448 Rio Grande do Sul
  • Rodríguez, F. M.
    		• 355 Candelaria Misiones
  • Rojas, T.
    		• 1941 Alto Paraguay
  • Schinini, A.
    		• 17007 San Martín Corrientes
  • Schinini, A.
    		• 30358 Pilagás Formosa
  • Schwarz, G. J.
    		• 6955 Iguazú Misiones
  • Schwarz, G. J.
    		• 10445 Cainguás Misiones
  • Schwindt, E.
    		• 4036 San Pedro Misiones
  • Vanni, R. O.
    		• 1577 San Miguel Corrientes
  • Vanni, R. O.
    		• 3570 Iguazú Misiones
  • Vanni, R. O.
    		• 3850 Libertador General San Martín Misiones
  • Zardini, E. M.
    		• 13248 Paraguarí
  • Zuloaga, F. O.
    		• 2224 Candelaria Misiones
  • Zuloaga, F. O.
    		• 8374 Iguazú Misiones

    Nombre Vulgar y Usos

    Tipo y Observaciones

    Material Tipo: Basónimo: Sida hernandioides L'Hér.
    Observaciones: Etymology—The epithet hernandioides is probably related to the similarity with the frequently peltate or subpeltate leaves of the genus Hernandia (Hernandiaceae). Note—Wissadula hernandioides is very similar to W. amplissima, but is distinguished by the absence of simple and long trichomes on branches and velutinous indumentum on the adaxial surface of the leaves this species Kuntze (1898) proposed Abutilon amplissimum var. subpeltatum based on the overlapping basal leaf lobes and considered Sida hernandioides a synonym. Chodat and Hassler (1885–1902) examined two collections from Paraguay and proposed W. periplocifolia var. suborbiculata and var. cordata based on the same leaf characteristic described above. Fries (1908), after analyzing both collections, accepted A. amplissimum var. subpeltatum and reported a characteristic that was not observed before for the taxon: the presence of short, erect and oblique bristles on the pedicel and calyx. Based on these characteristics, Fries (1908) established W. subpeltata, considering the varieties proposed by Chodat and Hassler (1885–1902) as synonyms. Based on the type material of W. subpeltata (NY and US) and on materials from several localities, we noticed that the presence of lobes on the leaves is not consistent. That is, the same specimen (Hoehne 2994, Eugenio 234) may have leaves with imbricate lobes or not. On the original plate of W. amplissima, the basal leaves have lobes united to one another.

    Aspecto general