7 datasets found

This spatial data set was created by the U.S. Geological Survey (USGS) to represent the basal area of red alder trees within each incremental watershed delineated in the NHDPlus...

Growth Response of Sixteen Species of Coniferous and Deciduous Tree Seedlings and Clones exposed to ozone. Contains both ozone and dry weight data for the following tree...

Observations of plant species at Crater Lake NP, Lassen Volcanic NP, Lava Beds NM, Oregon Caves NMP, Redwood NSP, and Whiskeytown NRA.

Red alder (Alnus rubra) are a common component of forests in Western Oregon and Washington. This file provides an estimate of red alder basal area in western Oregon and...

Red alder (Alnus rubra) are a common component of forests in Western Oregon and Washington. This file provides an estimate of red alder basal area in western Oregon and...

Observations of plant species at Crater Lake NP, Lassen Volcanic NP, Lava Beds NM, Oregon Caves NMP, Redwood NSP, and Whiskeytown NRA.

Inventory of vascular plants within coastal bogs, wetlands, and lakeshores of Olympic National Park tabular data, 2003-2004. Vascular plant species were identified within...