The Flora covers the biogeographic region of the moist, relictual, unglaciated southeastern North America: south of the glacial boundary and east of the “dry line” to the west that marks a marked floristic boundary to the Great Plains prairies to the...

Plant biodiversity is threatened, yet many species remain undescribed. It is estimated that >50% of undescribed species have already been collected and are awaiting discovery in herbaria. Robust automatic species identification algorithms using...

With 90% of its nearly 1,400 native plants classified as endemic, Hawai'i has one of the highest levels of endemism of any floristic region of the world. Although Cyanea is one of the most species-rich flowering plant genera in Hawai'i, nearly half of...

Crop wild relatives, the wild progenitors and closely related cousins of cultivated plant
species, are sources of valuable genetic resources for crop improvement. Persisting gaps
in knowledge of taxonomy, distributions, and...

The Hamamelidaceae has genera with named cultivars, but only one cultivar registration authority for the genus Hamamelis. Choosing the Hamamelidaceae as the focus of this project provides missing information for members of this ornamentally valuable...

This is a list of Online Resources for Nomenclatural Verification assembled by the Plant Nomenclature & Taxonomy Community.

This Online Herbaria Guide was assembled by the Plant Nomenclature & Taxonomy Community. It provides a list of herbaria for research purposes. 

Ulmus americana (American elm) was an important urban tree in North America prior to the introduction of the Dutch elm disease pathogen in 1930. Subsequently, urban and community forests were devastated by the loss of large canopies. Tree improvement...

Access and benefit-sharing (ABS) refers to the way in which genetic resources
may be accessed, and how the benefits that result from their use are shared
between the people or countries using the resources (users) and the people or...

The Standards of Excellence in Plant Collections Management developed by the Plant...

 A companion Self-Assessment Tool is now available to help you evaluate your organization’s current level of collections management. Use the results along with the...

Botanic gardens are living museums, offering opportunities for conservation and research as well as education, experience, and enjoyment through their plant collections. A garden’s plant records system is as vital as the plants themselves, and serves...

Extinctions of species and subspecific taxa in hotspots of biodiversity deserve special attention. After more than 40 years of major efforts, estimates of extinct plant taxa in California seem to be somewhat stabilized. The time is...

Although only a minority of plant species have a specific human use, many more play important roles in natural ecosystems and the services they provide, and rare species are more likely to have unusual traits that could be useful in the future. The ...

For the first time, this peer-reviewed report presents the most up-to-date data on the status of plants on the New England landscape. The data discerns increases and declines in both rare and common species across all six states (encompassing 186,400...

Last year's State of the World’s Plants report focused predominantly on synthesising knowledge of the numbers of different categories of plants: How many vascular plants are currently known to science? How many are threatened with extinction? What is...

This publication documents the 81 posters and oral presentations that were made from May 16-19, 2016 in Chicago, IL covering such topics as in situ conservation, ex situ conservation, identifying and assessing ecosystems/species to conserve,...