Descripcion

Rizoma leñoso. Tallo de 15-30 cm de alto, triquetro, escabroso en lo alto. Hojas más cortas que el tallo, de 3-4 mm de ancho. Espiguillas numerosas, andróginas, dispuestas en espiga de 3 cm, subdensa, generalmente ebracteada; glumas ovales de color herrumbroso de bordes hialinos anchos. Utrículos poco más largos, ovales, plano-convexos, lisos, lustrosos, paucinervados en el dorso, de base esponjosa, brevemente estipitados, de bordes engrosados, gradualmente atenuados en rostro mediocre brevemente bidentado, estigmas 2.

Distribucion y Habitat

Hallado en Bolivia, sur de Chile, en la Argentina en Jujuy, Salta, Catamarca, La Rioja, Tucumán, Córdoba, la Patagonia. Distribution: Southern Andes, from Mendoza Province in Argentina, north to northern Argentina, disjunct in Sierra de Achala (Córdoba Province) and local in northern Chile (although see comments under C. ecuadorica), doubtful in Bolivia [83 BOL? 85 AGE AGW CLN].

Ejemplares de referencia

Colector N° Colect. Especie Departamento Provincia Imagen
  • Barboza, G. E.
    		• 2650 Famatina La Rioja
  • Barboza, G. E.
    		• 3201 Famatina La Rioja
  • Beck, S. G.
    		• 14045 Los Andes La Paz
  • Bianco, C. A.
    		• 2819 Calamuchita Córdoba
  • Bianco, C. A.
    		• 4292 RIOC Río Cuarto Córdoba
  • Burkart, A.
    		• 10234 San Alberto Córdoba
  • Burkart, A.
    		• 30411 Tilcara Jujuy
  • Cabrera, A. L.
    		• 9323 Cochinoca Jujuy
  • Charpin, A.
    		• 20661 Humahuaca Jujuy
  • Charpin, A.
    		• 20661 AC Humahuaca Jujuy
  • Claren, F.
    		• 11408 Santa Catalina Jujuy
  • Herter, W. G. F.
    		• 1666 -
  • Hieronymus, G. H. E. W.
    		• 600 La Rioja
  • Hieronymus, G. H. E. W.
    		• 600 La Rioja
  • Hosseus, C. C.
    		• 89 CORD 65922 Córdoba
  • Jiménez, A. M.
    		• 3 -
  • Jörgensen, P.
    		• 1658 Andalgalá Catamarca
  • Kunkel, G. W. H.
    		• 540 -
  • Kurtz, F.
    		• 7635 Malargüe Mendoza
  • Kurtz, F.
    		• 7635 Malargüe Mendoza
  • Kurtz, F.
    		• 10883 Coronel Felipe Varela La Rioja
  • Kurtz, F.
    		• 11408 Santa Catalina Jujuy
  • Kurtz, F.
    		• 13917 Coronel Felipe Varela La Rioja
  • Kurtz, F.
    		• 13930 Coronel Felipe Varela La Rioja
  • Lorentz, P. G.
    		• 660 Famatina La Rioja
  • Múlgura, M. E.
    		• 1332 Humahuaca Jujuy
  • Nicora, E. G.
    		• 8964 Los Andes Salta
  • Pedersen, T. M.
    		• 14375 Aisén Aisén
  • Ruiz Leal, A.
    		• 12211 Santa María Catamarca
  • Ruthsatz, B.
    		• 8430 Iquique Tarapacá
  • Schreiter, R.
    		• 10984 Yavi Jujuy
  • Spegazzini, C. L.
    		• 12725 -
  • Stuckert, T. J. V.
    		• 21177 -
  • Taylor, C. M.
    		• 11331 Cochinoca Jujuy
  • Villamil, C. B.
    		• 9174 Zapala Neuquén
  • Villamil, C. B.
    		• 9210 Zapala Neuquén
  • Villamil, C. B.
    		• 10820 Zapala Neuquén
  • Villamil, C. B.
    		• 11275 Zapala Neuquén
  • Villamil, C. B.
    		• 11296 Zapala Neuquén
  • Villamil, C. B.
    		• 11533 Zapala Neuquén

    Nombre Vulgar y Usos

    Tipo y Observaciones

    Material Tipo: Lectotype (designated by Wheeler, 2006): ARGENTINA: La Rioja, Sierra Famatina, en las cercanías de la quebrada, 2 a 4 leguas arriba del Vallecito, 21 Jan 1878, Hieronymus & Niederlein 600 (S-07-12262 digital image!; isolectotype: SI digital image!, photograph at F!). [G. A. Wheeler, Hickenia 3: 259–266. 2006].
    Observaciones: Iconography: Figures 2S, 3S. See additional figures in Barros (1947: tab. 173) and Wheeler (2009: 332, fig. 298). Etymology: From the Greek makros, long, large, and rhiza, root, ‘large rooted’, referring to the thick elongated rhizomes of this species. Notes: Kükenthal (1909) presumably studied at B the original material of the names C. macrorrhiza and C. curvifolia (now destroyed), synonymizing the latter to the former. We follow Kükenthal (1909) and Wheeler (2006) and keep C. curvifolia as synonym of C. macrorrhiza. The plant pictured in Barros (1935: 196) does not match the characters of C. macrorrhiza regarding the utricle, although the plant that is represented for the whole habit strongly resembles the species. The plate might represent a large specimen of C. ecuadorica or a mix of different taxa.The records from Uruguay (Zuloaga et al., 2020; Govaerts et al., 2020+) seem to be at least partly based on specimens of C. divisa (e.g. URUGUAY: Soriano, Herter 94293, US-02141036!). Wheeler considered such records doubtful (Wheeler, 2006). The presence of C.macrorrhiza, an Andean species, in Uruguay also seems improbable to us, so we do not include the country under the distribution of the species. All the studied records from Bolivia are here identified as C. ecuadorica, thus the presence of specimens morphologically assignable to C. macrorrhiza in Bolivia needs confirmation.

    Aspecto general