Sonchus bornmuelleri, or Bornmueller's sow-thistle, is a plant endemic to the Canary Island of La Palma.
Description Perennial with woody stock. Leaves in a basal rosette, pinnatifid with rounded lobes; margins subspinose. Scape up to 80 cm, with a few small bracts. Inflorescence a dense corymb of up to 20 heads. Heads densely tomentose.
Distribution in La Palma Cliffs south of Santa Cruz de La Palma, coastal rocks near San Andrés y Los Sauces, lots pedregale (between the lighthouse and piscinas fajanas), Riscos de Bajamar, Garafia, Montaña del Viento, Mazo, Fuencaliente, etc., up to 200 m, rare.
References
David Bramwell and Zoë Bramwell. Wild Flowers of the Canary Islands. Editorial Rueda, Madrid, España. 2001.
External links Flora, Biodiversidad Virtual es un proyecto de la Asociación Fotografía y Biodiversidad, Sonchus bornmuelleri Pit. photo, captions in Spanish Flora Vascular de las Canarias, photo from Mirador de Garome. La Palma Uniprot Plantas de mi tierra Un blog sobre flora y vegetación de Canarias, Sonchus bornmuelleri