Populus tremula (European aspen) shows no evidence of sexual dimorphism.
Robinson KM, Delhomme N, Mähler N, Schiffthaler B, Onskog J, Albrectsen BR, Ingvarsson PK, Hvidsten TR, Jansson S, Street NR.
Robinson KM, et al. Among authors: albrectsen br.
BMC Plant Biol. 2014 Oct 16;14:276. doi: 10.1186/s12870-014-0276-5.
BMC Plant Biol. 2014.
PMID: 25318822
Free PMC article.