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The diverse geography of Texas, the second-largest state, hosts a variety of habitats for amphibians, including swamps and the Piney Woods in the east, rocky hills and limestone karst in the central Hill Country of the Edwards Plateau, desert in the south and west, mountains in the far west (the Trans-Pecos), and grassland prairie in the north ...
Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.
The stems of Texas rainbow cactus are between 11–24 cm long and 5.5–7 cm wide and usually have 15–18 ribs. The spines usually overlap making the stem not visible. There is a great amount of variation in the spines characteristics. There are typically 4–12 central spines that are .5–1.2 cm long and 14–25 radial spines that are .7–2 ...
Crataegus texana is a perennial tree [4] that grows to be about 25 feet tall [5] and has long, sharp thorns. It has shiny, dark green leaves that can grow to be between 0.75 and 1.5 inches long. Its simple leaves [4] have toothed leaf margins with a parallel veination. [2] Their leaves are ovate in shape, acute at the apex, and cuneate at the ...
This is a list of official U.S. state, federal district, and territory amphibians. State amphibians are designated by tradition or the respective state legislatures. [1] As of 2023, only 28 states and one territory have a state amphibian.
Amphibians have soft bodies with thin skins, and lack claws, defensive armour, or spines. Nevertheless, they have evolved various defence mechanisms to keep themselves alive. The first line of defence in salamanders and frogs is the mucous secretion that they produce. This keeps their skin moist and makes them slippery and difficult to grip.
These plants are primarily found in the northern Chihuahuan desert in Texas and Mexico (Chihuahua, Coahuila, Durango, Nuevo León, San Luis Potosí, Tamaulipas, Zacatecas) at elevations of 800-2200 meters. They typically grow on flat gravelly soils, limestone or sandstone slopes of hills or outcrops, and alluvial fans in desert or grassland ...
They may have one or multiple trunks with a multitude of branches. They have bipinnate leaflets of a light green to blue hue that cast a light to deep shade, depending on the species. Spikes of flowers form in spring and summer that form a flat pod of beans 5–15 centimetres (2–6 in) long. Many species form thorns.