The American Naturalist, Vol. 41, No. 487 (Jul., 1907), pp. 431-441 (11 pages) Certain features of leaf development which were established some fifty years ago, should not be overlooked. These are ...

Pinnate green leaves turn red, orange, or yellow in fall. You can plant Chinese pistache in spring or fall, but fall allows the tree's roots time to establish over the cold winter. Plant the tree ...

Jason Chukwuma-Eze, a fifth-grader at Shawnee Middle School, won the spelling bee by spelling "pinnate" correctly and will compete in the Scripps National Spelling Bee in Washington, D.C. in May.