PopulusPopulus is a genus of over 60 species of deciduous flowering plants in the family Salicaceae, native to temperate, subarctic, and montane regions of Eurasia, North America, and North Africa, and to the tropical highlands of East Africa. English names variously applied to different species include poplar (), aspen, and cottonwood. The western balsam poplar (P. trichocarpa) was the first tree to have its full DNA code determined by DNA sequencing, in 2006.
Chihuahua (state)Chihuahua (Spanish pronunciation:), officially the Estado Libre y Soberano de Chihuahua (English: Free and Sovereign State of Chihuahua) is one of the 31 states which, along with Mexico City, are the 32 federal entities of Mexico. It is located in the northwestern part of Mexico and is bordered by the states of Sonora to the west, Sinaloa to the southwest, Durango to the south, and Coahuila to the east.
Populus sect. AigeirosPopulus section Aigeiros is a section of three species in the genus Populus, the poplars. Like some other species in the genus Populus, they are commonly known as cottonwoods. The species are native to North America, Europe, and western Asia. In the past, as many as six species were recognized, but recent trends have been to accept just three species, treating the others as subspecies of P. deltoides.
TexasTexas ( TEK-səss) is a state in the United States. Located in the south-central part of the country, it borders Louisiana, Arkansas, Oklahoma, and New Mexico. It also borders Mexico along the Rio Grande, and has a coastline on the Gulf of Mexico. Covering 268,596 square miles (695,660 km2) and with an estimated population of over 31.7 million residents in 2025, it is the second-largest state by both area and population.
WyomingWyoming ( ) is a landlocked state in the Mountain West subregion of the Western United States. It borders Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the southwest, and Colorado to the south. With an estimated population of 587,618 as of 2024, Wyoming is the least populous state despite being the tenth-largest by area, and it has the second-lowest population density.
TreePerennial woody plant with elongated trunkCommon ash (Fraxinus excelsior), a deciduous broad-leaved (angiosperm) treeEuropean larch (Larix decidua), a coniferous tree which is also deciduousIn botany, a tree is a perennialplant with an elongated stem, or trunk, usually supporting branches and leaves.
CatkinA catkin or ament is a slim, cylindrical flower cluster (a spike), with inconspicuous or no petals, usually wind-pollinated (anemophilous) but sometimes insect-pollinated (as in Salix). It contains many, usually unisexual flowers, arranged closely along a central stem that is often drooping. Catkins are found in many plant families, including Betulaceae, Fagaceae, Moraceae, and Salicaceae.HardwoodHardwood is wood from flowering (angiosperm) trees. These are usually found in broad-leavedtemperate and tropical forests. In temperate and boreallatitudes, they are mostly deciduous, but in the tropics and subtropics, they are mostly evergreen. Hardwood (which comes from angiosperm trees) contrasts with softwood (which is from gymnosperm trees). CharacteristicsHardwoods are produced by angiosperm trees that reproduce by flowers, and have broad leaves.
Bark (botany)Bark is the outermost layer of stems and roots of woody plants. Plants with bark include trees, woody vines, and shrubs. Bark refers to all the tissues outside the vascular cambium and is a nontechnical term. It overlays the wood and consists of the inner bark and the outer bark. The inner bark, which in older stems is living tissue, includes the innermost layer of the periderm.
CottonPlant fiber from the genus GossypiumCotton is a soft, fluffy staple fiber that grows in a boll, or protective case, around the seeds of the cotton plants of the genus Gossypium in the mallow family Malvaceae. The fiber is almost pure cellulose and may contain minor percentages of waxes, fats, pectins, and water. Under natural conditions, cotton bolls facilitate the dispersal of the seeds.
LeafPhotosynthetic part of a vascular plantThe diversity of leaves, including Bismarckia, Araucaria, Euphorbia, Nymphaea, Colocasia, Hildegardia, Picea, Melocactus, Cycas, Acer, Yucca, Ferocactus, and Ocimum.Leaf of Tilia tomentosa (silver linden tree)Diagram of a simple leaf.
FlowerFlowers, also known as blossoms and blooms, are the reproductive structures of flowering plants. Typically, they are structured in four circular levels around the end of a stalk. These include: sepals, which are modified leaves that support the flower; petals, often designed to attract pollinators; male stamens, where pollen is presented; and female gynoecia, where pollen is received and its movement is facilitated to the egg.*As an Amazon Associate I earn from qualifying purchases.