Francis Whittier Pennell (4 August 1886 – 3 February 1952) was an American botanist best known for his studies of the Scrophulariaceae. Employed by the...

filmmaker Edward Pennell (1894–1974), Royal Flying Corps officer Elizabeth Robins Pennell (1855–1936), American writer Francis W. Pennell (1886–1952), American...

using an earlier incomplete description by Thomas Nuttall. In 1933 Francis W. Pennell described a species he named Penstemon alluviorum. It is still recognized...

Orobanchaceae. The first detailed study of this genus began with Francis W. Pennell around 1908, and his earliest major publication of the North American...

Sakhalin) and also Japan. The genus name of Pennellia is in honour of Francis W. Pennell (1886–1952), an American botanist best known for his studies of the...

the family Plantaginaceae. It was first formally named in 1933 by Francis W. Pennell and was transferred to the genus Veronica in 2004. Veronica alaskensis...

shale). This species was described to science in 1933 by botanist Francis W. Pennell, although it was subsequently included under Penstemon canescens or...

Arizona. It has pale yellow tubular flowers. It was first described by Francis W. Pennell in 1924 in the genus Maurandya and transferred to Mabrya by Wayne...

times, resulting in numerous synonyms. In the early 20th century Francis W. Pennell discovered that the downy species known at that time as Dasystoma...

described as Penstemon pallescens by George E. Osterhout in 1930. In 1920 Francis W. Pennell reevaluated Asa Gray's identification of the specimen collected near...