Penstemon nomenclature
Subtitle: and related genera Chelone, Chionophila, Keckiella, Nothochelone, and Pennellianthus
By: by Kenneth and Robin Lodewick ; based on earlier work by Ralph Bennett.
Contributors: Lodewick, Robin.; Bennett, Ralph W.
Edition: 3rd ed.
Publisher: K. & R. Lodwick
Published: 2002
Place of publication: Eugene, Or
Language: eng
Number of pages: 86
Subjects: Penstemons -- Nomenclature.
Genres: Nomenclature.
Notes: Includes bibliographical references (p. 62-70).
"Including genus Penstemon and five other genera from the tribe Cheloneae (Scrophulariaceae)."
"Based on Ralph Bennett "Penstemon Nomencalture" 1960."