Francis Whittier Pennell (4 August 1886 – 3 February 1952) was an American botanist best known for his studies of the Scrophulariaceae. Employed by the...
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filmmaker Edward Pennell (1894–1974), Royal Flying Corps officer Elizabeth Robins Pennell (1855–1936), American writer Francis W. Pennell (1886–1952), American...
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using an earlier incomplete description by Thomas Nuttall. In 1933 Francis W. Pennell described a species he named Penstemon alluviorum. It is still recognized...
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Orobanchaceae. The first detailed study of this genus began with Francis W. Pennell around 1908, and his earliest major publication of the North American...
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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...
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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...
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shale). This species was described to science in 1933 by botanist Francis W. Pennell, although it was subsequently included under Penstemon canescens or...
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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...
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times, resulting in numerous synonyms. In the early 20th century Francis W. Pennell discovered that the downy species known at that time as Dasystoma...
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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...
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