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Dyckia decomposita is a synonym of:

Deuterocohnia longipetala (Baker) Mez

Publ: Bromeliaceae (part 3) 3(3): 507 (1894)

Type: Perú, Dept. Cajamarca, Río Marañon, Aug. 1802, Humboldt and Bonpland 3595 [holotype: B (not seen, probably destroyed), photo in F, negative 11389]. Epitype (designated in the present study): Perú, Dept. Cajamarca, Prov. Jaén, 2 miles E of Lac, Canyon of Río Chamaya, 850 m, 04 Oct. 1957, Hutchison 1571 [UC, isoepitypes US, USM. Cultivated in F].

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Distribution: PERU. Dept. Amazonas, Cajamarca, Lambayeque, La Libertad. BOLIVIA. Dept. Tarija. ARGENTINA. Prov. Jujuy, Salta, Tucumán, Catamarca, Santiago del Estero, La Rioja, San Juan, Córdoba, San Luis, Mendoza

Habitat: Terrestrial, on dry, rocky slopes, open shrub vegetation on sandstone as well as on granite, also on saline soil., 250–1500 m. Elev.

Etymology: The epithet refers to the long petals.

Phenology: Main anthesis from October to February. Hummingbirds are supposed to be the main pollinators.

Deuterocohnia longipetala