Urbanization is a large driver of biodiversity globally. Within cities, urban trees, gardens, and residential yards contribute extensively to plant biodiversity, although the consequences and mechanisms of plant cultivation for biodiversity are...

Interception of potential invasive species at ports-of-entry is essential for effective biosecurity
and biosurveillance programs. However, taxonomic assessment of the immature stages
of most arthropods is challenging; characters for...

The history of the Morris Arboretum can be told through its eldest trees. Every scar and abnormality present on these immense specimens inspire awe, enrich visitor experience, and provide a glimpse into the past of the gardens. They also act as living...

Oaks are critical to the health and function of forest and shrubland habitats in the United States, but many native oaks are threatened with extinction in the wild. Ongoing conservation efforts exist for some species, but with growing threats and...

In October 2018, the Stockholm Resilience Centre released a report “Transformation is Feasible” to the Club of Rome on how to achieve the UN’s Sustainable Development Goals within Planetary Boundaries. Of four simulations run, only transformational...

Improving urban forests is one of the solutions to achieving several of the United Nations Sustainable Development Goals and making cities healthier and more livable for people. Priority should be given to protecting mature trees and promoting long‐...

Intensively managed landscapes, like those found in many public gardens, attempt to mitigate the impact of significant weather events through irrigation, improving soil characteristics, and mulching. At the same time many gardens purposefully push the...

Medicinal plants have an immense need for intensive curation and interpretation. Many of the more powerful and important medicinal species have little aesthetic value, making medicinal collections difficult to display. Properly interpreted, medicinal...

A collaborative relationship between Asa Gray Garden at Mount Auburn (an active cemetery), architects, and nearby Arnold Arboretum resulted in a beautiful and inspiring garden featuring trees, shrubs, and perennials that provide color, texture, and...

Participants will learn about the potential impacts of climate change on 125 tree species of the eastern US. Changes in suitable habitat, capacity to cope with the changing climate, and potential for infilling or migration by the end of this century...

This publication provides forest resource statistics contributing to the 2020 Resources Planning Act (RPA) Assessment to provide current information on the Nation’s forests. Resource tables present estimates of forest area, volume, mortality, growth,...

Davallia solida (G. Forst.) Sw. (Davalliaceae), Phlebodium aureum (L.) J. Sm. (Polypodiaceae), Phlebodium pseudoaureum (Cav.) Lellinger (Polypodiaceae), and Rumohra adiantiformis (G. Forst.) Ching (Dryopteridaceae) are epiphytic ferns native to the...

This presentation reveals how gardens efforts have helped surpass the goals of the Million Pollinator Garden Challenge! 

Highlights:

• Top Pollinator Planting Towns and Cities
• Garden Impact on Pollinator Diversity and
...

A major challenge in articulating human dimensions of climate change lies in translating global climate forecasts into impact assessments that are intuitive to the public. Climateanalog mapping involves matching the expected future climate at a...

The PCA welcomed Doug Tallamy, Mary Phillips, John Rowden, and Judy Venonsky as panelists (Moderated by Casey Sclar) on “Identifying and addressing information gaps in plant databases to support emerging planting design technologies promoting...

To address the growing interest and expressed need for pollinator management strategies a special pollinator symposium was held at the 2017 annual conference of the Natural Areas Association, curated by William Carromero of the US Forest Service and...

Canada is home to about 5087 species of higher plants of which 25% were introduced to Canada either deliberately or by accident. The richness of botanical species is highest in the southern, more densely settled parts of the country. About 364 native...

This tree plan, not only comprises a history of trees that once stood in the Park and catalogues the trees currently standing, but also directs the succession and maintenance of the tree canopy that future generations of Park users will enjoy. As we...

In a pollen supplementation experiment, fruit or seed production by flowers exposed to natural pollination is compared to that following hand pollination either by pollen supplementation (i.e. manual outcross pollen addition without bagging) or manual...

Functional traits are increasingly used to understand the ecology of plants and to predict their responses to global changes. Unfortunately, trait data are unavailable for the majority of plant species. The lack of trait data is especially prevalent...