Flora del Cono Sur · Ficha del taxón
Perennial herbs, caespitose, stems prostrate, 10–25 cm, branched, densely leafy at base and more loosely in upper part, whitish-tomentose. Leaves 15–25 × 1.5–4(–5) mm, obovate to linear-obovate, attenuate or slightly attenuate at base, apex acute and shortly acuminate, mucronate; concolorous, whitish-tomentose on both surfaces; trichomes long, eglandular, eseptate, filiform from base to tip. Capitula many, in headlike clusters, subtended by linear leaves, sometimes with 1(or 2) clusters at base. Involucre narrowly campanu late, 3.5–4 × ca. 2 mm. Phyllaries 14 to 20, 4-seriate, lamina light brown at apex; outer phyllaries 2.1–3.5 × 0.9–1.2 mm, ovate, apex subobtuse to acute, lanugi nose at base; inner phyllaries 3.4–4 × 0.5–1 mm, oblong- lanceolate, apex subobtuse, glabrous. Pistillate florets 20 to 40, corolla ca. 3 mm. Bisexual florets 2 to 3, corolla ca. 3.2 mm, 5-lobed, anthers 5. Achenes ca. 0.5 mm, pilose, with short, globose duplex trichomes. Pappus bristles ca. 3.3 mm.
Basónimo: Gnaphalium procumbens Phil.
Gamochaeta procumbens is known from central and southern Chile (Freire et al., 2016) and is reported here for Argentina. It grows in the Subantarctic and Andean-Patagonian dominions (Cabrera & Willink, 1973) at elevations between 1558 and 2150 m.
El nombre aceptado actualmente para la Flora del Cono Sur es Gamochaeta procumbens .
Referencia bibliográfica:
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| Phil. | 1895 | Anales Univ. Chile 90 · 25 |
Gnaphalium procumbens
Sinónimo registrado de Gamochaeta procumbens .
Chile. “In Andibus prov. Talca invenit orn. Heribertus Dupuy” (holotype, SGO-64489!).
Freire, S. E., Grossi, M. A., Bayón, N. D., Monti, C., Iharlegui, L. & Migoya, M. A. (2024). Taxonomic revision and morphometric analysis of Gamochaeta (Asteraceae, Gnaphalieae). Annals of the Missouri botanical garden, 109, 244-320.
Freire, S. E., Salomón, L., Bayón, N. D., Baeza, C. M., Muñoz-Schick, M. & Migoya, M. A. (2016). Taxonomic revision of the genus Gamochaeta Wedd. (Gnaphalieae, Asteraceae) in Chile. Gayana, instituto central de biología. Botánica., 73(2), 292-345.
Freire, S. E. & Iharlegui, L. (1997). Sinopsis preliminar del género Gamochaeta (Asteraceae, Gnaphalieae). Boletín de la Sociedad Argentina de Botánica, 33, 23-35.
Cabrera, A. L. (1961). Observaciones sobre las Inuleae-Gnaphalineae (Compositae) de América del Sur. Boletín de la Sociedad Argentina de Botánica, 9, 359-386.
Chile · Biobío · Termas de Chillán, Cerro Pirigallo
Chile · Biobío · Termas de Chillán
Registros de herbario determinados actualmente con este nombre.
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| 4356 | Chile | Los Ríos | Region de Los Rios. Prov. de Valdivia Comuna de Panguipulli. Faldeos Volcán Chosuenco | 05/02/2012 | ||
| 3648 | Chile | Biobío | Termas de Chillán, Cerro Pirigallo | 06/02/1936 | ||
| -1 12 | Chile | Biobío | Termas de Chillán | 00/02/1947 |
Sin datos de conservación registrados en Flora Vascular Argentina.
Fuente: Flora Vascular Argentina.
Recognition. The cluster analysis (Fig. 3A) shows that Gamochaeta procumbens is grouped with G. alpina, G. nivalis, and G. serpyllifolia. These species have pros trate stems and capitula arranged in headlike clusters. Gamochaeta procumbens is differentiated by its obovate to linear-obovate leaves, acute and short-acuminate at the apex (vs. broadly obovate, obtuse to rounded at the apex in G. alpina, G. nivalis, and G. serpyllifolia).