Polymer Chemistry. Morphology. Polymer morphology is the overall form of polymer structure, including crystallinity, branching, molecular weight, cross-linking, and so on14. Small molecules usually have crystalline solids, which are highly-ordered 3-dimensional arrays of the molecules.
Further information: List of flora of the Mojave Desert and Flora of the Sierra Nevada alpine zone. Native wildflower blazing star (Mentzelia lindleyi) Gentiana algida in Sierra Nevada. California native plants are plants that existed in California prior to the arrival of European explorers and colonists in the late 18th century.
The flora of the Mojave Desert help define what is called the Mojave Desert in that the desert itself is generally considered to be outlined by the extent of growth of one of its plants, the Joshua tree (Yucca brevifolia). Mojave Desert flora is not a vegetation type, although plants in the area have evolved in isolation because of physical barriers. This area includes southeastern California and smaller parts of central California, southern Nevada, southwestern Utah and northwestern Arizona in the United States.