在一个时间段内，与基准网站相关性较高的站点包括：
Invasivespeciesinfo.gov -- Reference gateway to invasive species information; covering Federal, State, local, and international sources.[国际网路] - www.i*vasivespeciesinfo.gov - -
The National Park Service cares for special places saved by the American people so that all may experience our heritage.[国际网路] - www.np*.gov - -
Lady Bird Johnson Wildflower Center focused on protecting and preserving North America's native plants through native plant lists and image galleries, conservation, education, natural landscapes, seed collection - Millennium Seed Bank (MSB) Project, preserving and restoring native communities, spreading awareness on invasive species and gardening to attract wildlife. We deliver useful information, latest low impact development trends and techniques, useful gardening tips, innovative approaches and tools to use native plants and preserve natural landscapes.[国际网路] - www.wildflow*r.org - -
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