![]() "customs value" means the value as determined in accordance with the Customs Valuation Agreement "consignment" means products which are either sent simultaneously from one exporter to one consignee or covered by a single transport document covering their shipment from the exporter to the consignee or, in the absence of such a document, by a single invoice "classified" means included in the classification of a product or material under a particular Chapter, heading, or subheading of the Harmonized System Christy, Wetlands Ecologist, (ORBIC) Oregon Biodiversity Information Center (2012 rev."Chapter", "heading" and "subheading" means the Chapter, the heading (four-digit code) and the subheading (six-digit code) used in the nomenclature which constitutes the HS Veronica americana Aquatic Vegetation Īmerican brooklime (Crowe et al. Utricularia macrorhiza Aquatic Vegetation Schoenoplectus subterminalis Aquatic Vegetation Ranunculus aquatilis - Callitriche palustris Herbaceous Vegetation Water crowfoot - vernal water starwort (Christy 2004: 137 Crowe et al. Ranunculus aquatilis - Callitriche verna Aquatic Vegetation Potamogeton gramineus Aquatic Vegetation Potamogeton diversifolius Aquatic Vegetationĭiverse-leaved pondweed (Crowe et al. Yellow pond-lily (Murray 2000: 23 Christy 2004: 132 Crowe et al. Myriophyllum sibiricum Aquatic Vegetation Myriophyllum hippuroidesAquatic Vegetation 2004: 70 NS)įontinalis (antipyretica, neomexicana) Nonvascular Aquatic Vegetationĭuckweed (Murray 2000: 22 Christy 2004: 127 NS) Waterweed (Christy 2004: 116 Crowe et al. 2004: 69)Ĭeratophyllum demersum Western Aquatic VegetationĬoontail (Christy 2004: 101 Crowe et al. Pacific Mosquito Fern, Mexican Mosquito Fern (Christy 2004: 68 NS)īrasenia schreberiWestern Aquatic VegetationĬallitriche heterophyllaAquatic Vegetation ĭifferent-leaved water-starwort (Christy 2004: 75)Ĭallitriche verna Aquatic Vegetation Water regime: Subtidal, intertidal, or permanently to seasonally floodedĮcoregion*: BM = Blue Mountains, BR = Northern Basin and Range, CB = Columbia Basin, CR = Coast Range, EC = East Cascades, KM = Klamath Mountains, WC = West Cascades, WV = Willamette ValleyĪzolla (filiculoides, mexicana) Aquatic Vegetation Habitat: Estuaries, rivers, streams, lakes, and ponds Since 1850, much aquatic bed habitat has been lost to river channelization, siltation, and filling for agriculture or urban development. A large variety of invertebrates and vertebrates use both aquatic beds and emergent wetlands during part of their life cycles. They provide critical food and cover for fish, amphibians, and invertebrates, and are usually directly linked to riverine and emergent wetlands by hydrology, chemistry, and food webs. They include subtidal kelp forests, intertidal eelgrass beds, and often dense stands of native or exotic species that clog waterways and annoy swimmers and boaters. Aquatic beds may be perennially flooded, tidal, or only seasonally flooded. Plants may be rooted, suspended in the water column, or free-floating. They occur in nearshore areas along the coast, in estuaries, and in rivers, ponds, lakes, and sloughs on most topographic surfaces throughout the state. Christy, Oregon Biodiversity Information Center)Īquatic beds (lakes, ponds, and rivers see also salt marshes, brackish marshes) are composed of mostly submerged vegetation, the upper portions of which may float at the surface.
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