Bastardbildung und intraspezifische Sippengliederung bei Echinops sphaerocephalus (Asteraceae, Cardueae) in Mitteleuropa

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith