These clues will help you identify just about any hardwood or softwood tree you see in North America. Think you know your North Americantrees? Hardwood Trees Hardwoods are also known as angiosperms, broadleaf, o
Gaifman, H., Specker, E.P.: Isomorphism types of trees. Proc. Am. Math. Soc. 15.1 , 1–7 (1964).Haim Gaifman and E. P. Specker. Isomorphism types of trees. Procee- dings of the American Mathematical Society, 15:1-6, 1964....
They’re one of the most popular types of trees in the world, growing from cooler temperate regions to tropical areas in the Americas, as well as across Asia,Europe, and northern Africa. Oak trees typically have spirally arranged leaves, with gentle curves on the outside. While most are d...
TreePicturesOnline.com has a large library of tree images and photos on many types of trees. Tree photo galleries in the left column are many different types of tree species. Within each tree page are valuable facts on that tree type, growth rates, variations of the tree species, tree ...
The trees feature compact foliage. Among good options for bonsai are Ezo spruce (P. jezoensis), Norway spruce (P. abies), and Colorado blue spruce (P. pungens). These North American natives are long-lived trees that have medium drought tolerance, silvery-blue foliage, and good cold ...
Bromeliads commonly grow in the American tropics, and a majority of the species are found in Brazil. Many bromeliads are tough and long-lived, and they will combine comfortably with other plants in your home. There are about 2,000 bromeliad genera; they vary greatly in size, color, distrib...
The California Fan Palm, which goes by several names like Desert Fan Palm, American Cotton Palm, and Arizona Fan Palm, is a tough cookie when it comes to cold weather, holding its ground even when temperatures drop as low as 15 degrees Fahrenheit once it’s mature enough. ...
Oak wilt is a fungal pathogen (Ceratocystis fagacearum) killing thousands of oak trees in North American forests and woodlands each year. Oak wilt is highly likely in all species of red oak, including the northern red oak (Quercus rubra), northern pin oak (Quercus ellipoidalis), and the ...
Trees that Morels Grow Around: Black, Burn-site, and Half-Free Morels of theElataClade Theelataclade currently contains 14 species in North America and represents the black, half-free, and burn-site morels. One of the most widespread eastern North American black morels,Morchella angusticeps, ...
today. The trees, culture, and history of the Japanese–American relationship are celebrated in the annual Cherry Blossom Festival in D.C. The festival typically takes place in early March but is dependent on local weather changes that affect the blossoming. Cherry Tree Care Like all plants,...