Quercus: A plant genus of the family FAGACEAE that is a source of TANNINS. Do not confuse with Holly (ILEX).Trees: Woody, usually tall, perennial higher plants (Angiosperms, Gymnosperms, and some Pterophyta) having usually a main stem and numerous branches.Acer: A plant genus of the family ACERACEAE, best known for trees with palmately lobed leaves.Plant Leaves: Expanded structures, usually green, of vascular plants, characteristically consisting of a bladelike expansion attached to a stem, and functioning as the principal organ of photosynthesis and transpiration. (American Heritage Dictionary, 2d ed)Mediterranean Region: The MEDITERRANEAN SEA, the MEDITERRANEAN ISLANDS, and the countries bordering on the sea collectively.Pollen: The fertilizing element of plants that contains the male GAMETOPHYTES.Ephedra: A plant genus of the family Ephedraceae, order Ephedrales, class Gnetopsida, division Gnetophyta.Fagus: A plant genus of the family FAGACEAE.DNA, Chloroplast: Deoxyribonucleic acid that makes up the genetic material of CHLOROPLASTS.Seedling: Very young plant after GERMINATION of SEEDS.British Columbia: A province of Canada on the Pacific coast. Its capital is Victoria. The name given in 1858 derives from the Columbia River which was named by the American captain Robert Gray for his ship Columbia which in turn was named for Columbus. (From Webster's New Geographical Dictionary, 1988, p178 & Room, Brewer's Dictionary of Names, 1992, p81-2)OregonEncyclopedias as Topic: Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)Salmon: Fish of the genera ONCORHYNCHUS and Salmo in the family SALMONIDAE. They are anadromous game fish, frequenting the coastal waters of both the North Atlantic and Pacific. They are known for their gameness as a sport fish and for the quality of their flesh as a table fish. (Webster, 3d ed).Famous PersonsRivers: Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).Expeditions: Usually refers to planned scientific data-gathering excursions.United States Office of Economic Opportunity: A division of the Executive Branch of the United States government concerned with overall planning, promoting, and administering programs relative to the provision of opportunities for economic advancement.Pueraria: A plant genus of the family FABACEAE a common weed of the southeast US. There has been folk use for alcoholism and liver protection. It contains puerarin, kakkalide, daidzein (isoflavonoids), and kudzusaponins (oleanene-type triterpene glycosides).Botany: The study of the origin, structure, development, growth, function, genetics, and reproduction of plants.Passifloraceae: A plant family of the order Violales, subclass Dilleniidae, class Magnoliopsida that are herbaceous or woody vines, shrubs, and trees, mostly of warm regions. Many have tendrils in leaf axils. Leaves are alternate. Flowers have 3-5 sepals, petals and stamens. Nearly all species have seeds that bear a fleshy appendage called an aril.Kluyvera: A genus of gram-negative, facultatively anaerobic bacteria in the family ENTEROBACTERIACEAE. It is found in FOOD; SOIL; and SEWAGE; and is an opportunistic pathogen of humans.GeorgiaGeorgia (Republic)Feedback: A mechanism of communication within a system in that the input signal generates an output response which returns to influence the continued activity or productivity of that system.Vapor Pressure: The contribution to barometric PRESSURE of gaseous substance in equilibrium with its solid or liquid phase.Flowers: The reproductive organs of plants.Soil: The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants.Plants, Genetically Modified: PLANTS, or their progeny, whose GENOME has been altered by GENETIC ENGINEERING.Sex: The totality of characteristics of reproductive structure, functions, PHENOTYPE, and GENOTYPE, differentiating the MALE from the FEMALE organism.Cold Climate: A climate characterized by COLD TEMPERATURE for a majority of the time during the year.North AmericaFlavonols: A group of 3-hydroxy-4-keto-FLAVONOIDS.Biodiversity: The variety of all native living organisms and their various forms and interrelationships.LaosUlmus: A plant genus of the family ULMACEAE that is susceptible to Dutch elm disease which is caused by the ASCOMYCOTA fungus, Ophiostoma.Tannins: Polyphenolic compounds with molecular weights of around 500-3000 daltons and containing enough hydroxyl groups (1-2 per 100 MW) for effective cross linking of other compounds (ASTRINGENTS). The two main types are HYDROLYZABLE TANNINS and CONDENSED TANNINS. Historically, the term has applied to many compounds and plant extracts able to render skin COLLAGEN impervious to degradation. The word tannin derives from the Celtic word for OAK TREE which was used for leather processing.Nuts: Botanically, a type of single-seeded fruit in which the pericarp enclosing the seed is a hard woody shell. In common usage the term is used loosely for any hard, oil-rich kernel. Of those commonly eaten, only hazel, filbert, and chestnut are strictly nuts. Walnuts, pecans, almonds, and coconuts are really drupes. Brazil nuts, pistachios, macadamias, and cashews are really seeds with a hard shell derived from the testa rather than the pericarp.China: A country spanning from central Asia to the Pacific Ocean.VietnamSouth CarolinaForestry: The science of developing, caring for, or cultivating forests.Xylella: A genus of gram-negative, aerobic bacteria, in the family XANTHOMONADACEAE. It is found in the xylem of plant tissue.Saxifragaceae: The saxifrage plant family of the order ROSALES, subclass Rosidae, class Magnoliopsida. The leaves are alternate and sometimes deeply lobed or form rosettes. The flowers have both male and female parts and 4 or 5 sepals and petals; they are usually in branched clusters. The fruit is a capsule with many seeds.Southeastern United States: The geographic area of the southeastern region of the United States in general or when the specific state or states are not included. The states usually included in this region are Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, West Virginia, and Virginia.FloridaPrimulaceae: A plant family of the order Primulales, subclass Dilleniidae, class Magnoliopsida. The flowers have both stamens and pistil, and the fruits are capsules.Begomovirus: A genus of plant viruses in the family GEMINIVIRIDAE that are transmitted in nature by whitefly Bemisia tabaci.Naphthaleneacetic Acids: Naphthalene derivatives containing the -CH2CCO2H radical at the 1-position, the 2-position, or both. Compounds are used as plant growth regulators to delay sprouting, exert weed control, thin fruit, etc.Kinetin: A furanyl adenine found in PLANTS and FUNGI. It has plant growth regulation effects.Cells, Cultured: Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.Benzyl Compounds