Sideritis carpetana (Labiatae), a new high-mountain Mediterranean species from the marble outcrops of the Sierra de Guadarrama (Central System, Madrid, Segovia, Spain)

Sideritis carpetana (Labiatae), a new high-mountain Mediterranean species from the marble outcrops of the Sierra de Guadarrama (Central System, Madrid, Segovia, Spain). Izquierdo, J. L., Ugarte, R. M., Gutiérrez-Girón, A., Castro, C. O. d., Núñez, D. R., & Gavilán, R. G. PhytoKeys, 251:143–159, January, 2025. Publisher: Pensoft Publishers

Paper doi abstract bibtex

A new species of Sideritis (Sideritis carpetana) is described from the calcareous, high-mountain Spanish flora in the central part of the Iberian Peninsula. It is found in a Mediterranean climate at high-elevation, perennial, calcareous grasslands, as well as in marble screes of anthropogenic origin in the Sierra de Guadarrama, Central System (Spain), in a reserve area within the Sierra de Guadarrama National Park, at 1996 m asl. Taxonomic morphological measurements were performed on collected specimens from Sierra de Guadarrama as well as on geographically-adjacent Sideritis (i.e., S. glacialis, S. pungens, S. hyssopifolia). The relationships among them were then explored with multivariate analysis. Sideritis carpetana is a dwarf shrub with an erect or decumbent habit, growing up to 15 cm; non-woody twigs with long hairs of 3–4 cells, leaves are entire, linear-oblanceolate, sparsely covered with trichomes; inflorescence is spiciform or slightly verticillated, flowers are yellow and nutlets ovoid. A key is supplied to help distinguish it from other high-mountain Iberian species included in section Sideritis. The species is unique in its combination of morphological and autoecological characters. S. carpetana shares similarities with S. glacialis, a species from Sierra Nevada, and its northern Mediterranean variant, S. glacialis subsp. fontqueriana from Sierra de Gúdar. They share morphological characters that are absent in other high-mountain Sideritis, reinforcing their Mediterranean character, as opposed to a more temperate or submediterranean character, such as those of the hyssopifolia group.

@article{izquierdo_sideritis_2025,
	title = {Sideritis carpetana ({Labiatae}), a new high-mountain {Mediterranean} species from the marble outcrops of the {Sierra} de {Guadarrama} ({Central} {System}, {Madrid}, {Segovia}, {Spain})},
	volume = {251},
	copyright = {2025 Jose Luis Izquierdo, Rosina Magaña Ugarte, Alba Gutiérrez-Girón, Concepción Obón de Castro, Diego Rivera Núñez, Rosario G. Gavilán},
	issn = {1314-2003},
	url = {https://phytokeys.pensoft.net/article/129982/},
	doi = {10.3897/phytokeys.251.129982},
	abstract = {A new species of Sideritis (Sideritis carpetana) is described from the calcareous, high-mountain Spanish flora in the central part of the Iberian Peninsula. It is found in a Mediterranean climate at high-elevation, perennial, calcareous grasslands, as well as in marble screes of anthropogenic origin in the Sierra de Guadarrama, Central System (Spain), in a reserve area within the Sierra de Guadarrama National Park, at 1996 m asl. Taxonomic morphological measurements were performed on collected specimens from Sierra de Guadarrama as well as on geographically-adjacent Sideritis (i.e., S. glacialis, S. pungens, S. hyssopifolia). The relationships among them were then explored with multivariate analysis. Sideritis carpetana is a dwarf shrub with an erect or decumbent habit, growing up to 15 cm; non-woody twigs with long hairs of 3–4 cells, leaves are entire, linear-oblanceolate, sparsely covered with trichomes; inflorescence is spiciform or slightly verticillated, flowers are yellow and nutlets ovoid. A key is supplied to help distinguish it from other high-mountain Iberian species included in section Sideritis. The species is unique in its combination of morphological and autoecological characters. S. carpetana shares similarities with S. glacialis, a species from Sierra Nevada, and its northern Mediterranean variant, S. glacialis subsp. fontqueriana from Sierra de Gúdar. They share morphological characters that are absent in other high-mountain Sideritis, reinforcing their Mediterranean character, as opposed to a more temperate or submediterranean character, such as those of the hyssopifolia group.},
	language = {en},
	urldate = {2025-01-31},
	journal = {PhytoKeys},
	author = {Izquierdo, Jose Luis and Ugarte, Rosina Magaña and Gutiérrez-Girón, Alba and Castro, Concepción Obón de and Núñez, Diego Rivera and Gavilán, Rosario G.},
	month = jan,
	year = {2025},
	note = {Publisher: Pensoft Publishers},
	pages = {143--159},
}

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