Revision of the Serrulati species of Penstemon section Saccanthera subsection Serrulati
Crossref DOI link: https://doi.org/10.1007/s12228-017-9498-9
Published Online: 2017-10-26
Published Print: 2018-03
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Holmgren, Noel H.
License valid from 2017-10-26