Táxones de interés corológico de la cuenca media del Duero (cañón del río Riaza, Segovia)
- Costa Tenorio, Margarita
- Morla Juaristi, Carlos
- Sáinz Ollero, Helios
ISSN: 0211-1322
Ano de publicación: 1984
Volume: 41
Número: 2
Páxinas: 395-405
Tipo: Artigo
Outras publicacións en: Anales del Jardín Botánico de Madrid
Resumo
The presence in the canyon of the Riaza river (Segovia) of several taxa is indicated. Among them, the following are outstanding: Isatis platyloba, recently incorporated to the Spanish flora, Onopordum acaulon subsp. acaulon, Globularia alypum and Saxifraga cuneata. Updated maps of their known distribution areas are included. Some other taxa collected in this area are discussed, evidencing, together with those mentioned, the phytogeographic interest of this site, mainly due to its paleogenous xerothermic elements.