author
Best known for a mid-century wildflower guide to Zion, Bryce Canyon, and Cedar Breaks, this Utah naturalist helped turn careful observation into something welcoming for everyday park visitors. His writing blends practical plant knowledge with a clear love of the landscape.
Leland F. Allen, identified by Project Gutenberg as Leland Franklin Allen, is known for co-authoring Wild Flowers of Zion and Bryce Canyon National Parks and Cedar Breaks National Monument with Carl E. Jepson. The book was published in 1958 by the Zion-Bryce Natural History Association in cooperation with the National Park Service, and Allen is credited there as a park naturalist.
That background shows in the book itself: it was created as a field-friendly guide for visitors, pairing descriptions with color photographs to help readers recognize the native flowers of southern Utah. Rather than writing in an academic way, Allen helped produce something practical and inviting, aimed at people who wanted to understand the parks more closely.
Reliable biographical details about his broader life are scarce in the sources I could confirm. An obituary in the Deseret News for Leland "Lee" Franklin Allen says he was born in Hyrum, Utah, on December 28, 1906, and died on February 4, 1990; because the available sources do not fully connect every detail beyond the shared name, it is safest to say that Allen is clearly remembered in print for his contribution to this enduring guide to the wildflowers of Zion and Bryce Canyon.