MARSB’s Native Species Lists for the Mid-Atlantic

Our lists are recommendations of native plants to be used for nursery production, restoration planting, and gardening. They are hand-selected to suit individual ecoregions and across several ecological settings. The selections are based on natural plant distribution, proven use or potential for use in nursery production, and success in outplanting. While the lists are primarily focused on taxa that can be grown in seed increase plots, these plants also lend themselves to live plant production.

When considering how to help foster a thriving, self-sustaining native seed supply chain, we asked ourselves:

“Of the thousands of plants native to the Mid-Atlantic, which should be recommended to growers and end-users in order to focus demand and simplify the complex challenges facing the native plant material supply chain?” The key issues revolved around questions of producibility and demand.

Our answer was to create native plant target lists that are guided by distribution and habitat data, but focused on the practical realities of commercial seed production.

In order to filter the totality of the Mid-Atlantic plant taxa into a more practical, attainable subset for commercial production, MARSB considered the following factors. Selected taxa met all or most of these criteria:

• Orthodox - produces seed which can be dried for multiple-year storage

• Good Seed Producers - produces non-trivial seed quantities within the context of the habitat within which it occurs

• Good Quality Seed Producers - produces seed with relatively high germination rates which is reasonable to harvest and clean

• Adaptable to Cultivation - thrives in nursery cultivation, or if cultivation traits are unknown, is related to known taxa that do

• Early Successional – early successional plants are frequently the most needed plant type for restoration plantings

• Needed for Cultivation – taxa not so common in nature as to make commercial production redundant or unnecessary

• Widespread - documented in a majority of counties in a given ecoregion

• Beneficial - support pollinators and wildlife through nectar, pollen, foliage, and cover

• Proven Successful - has documented success of establishment in restoration sites or is related to a plant which does

This selection process is ongoing as we add new habitat categories and work with regional experts to further refine chosen taxa. While we began with herbaceous plants because of their greater practicality for seed production, we are working on adding woody taxa as well.

Lists are categorized by: State, Ecoregion, and Habitat.

States: Maryland, New York, Pennsylvania, Delaware, and Virginia lists are currently available. New Jersey, West Virginia, and Eastern Ohio will be added in 2026.

Ecoregions: Taxa lists are grouped by Level III ecoregions, derived from Omernik (1987). Ecoregions define areas of ecosystem similarity based on several factors, including climate, geology, hydrology, vegetation, land use, and more. They provide an important spatial framework for structuring the management of ecosystems and natural resources.

Habitats: Within an ecoregion, lists are grouped among several broadly-defined habitat types and moisture gradients: meadow, wetland, woodland, and woodland-edge.

Each list is further divided into Broad and Basic subsets.

The Broad subset is a rich mix of taxa with high biodiversity for that particular habitat type. It encompasses a variety of different families and phenologies, comprising an optimal mix for herbaceous restoration planting, were cost and availability not an obstacle.

The Basic subset includes what we consider the most essential taxa of the Broad subset. It provides ecological function in a basic structure to which complementary plants can later be added. Basic subsets are composed of more than just statewide priority taxa (see below), acknowledging that ecoregional variations in taxa composition are widespread.

The State Priority Lists are MARSB’s first-tier recommendations for wide-scale commercial production and consist of taxa selected from among the ecoregional lists for their broad distribution within state boundaries. Our intention with the Priority lists is to build consensus among growers and end users on important taxa and thus enhance availability of those taxa. These lists do not include every taxon that could or should be put into commercial production, and in some instances include taxa that will require a more experienced, specialized grower for production.

Taxa included in a respective state’s priority list are documented in at least 75% of the state’s ecoregions and are not rare, threatened, or endangered.

The lists are housed in an interactive map tool that allows you to easily take geographic context and ecological factors into account when making plant selections.

GO TO THE TOOL

If you already know what lists you’re looking for, skip to MARSB’s mobile-friendly catalog of ecoregional lists.

GO TO THE CATALOG‍‍

Yes! Please reach out to info@marsb.org if you would like to consult with an ecologist to build a custom plant list or review an existing one. A negotiated fee may be set depending on the scale of the request.

MARSB welcomes consultation and collaboration with local and regional experts on the content of the taxa lists. With an expanded network of on-the-ground experts, MARSB can continue to evolve these lists so that the taxa most integral to local ecosystems are reflected in the native plant material supply chain.

If you are interested in participating as a part of an expert committee, please contact info@marsb.org.

We recognize that these taxa often require official oversight for their propagation. We do not recommend growing or collecting these plants from the wild. Instead, we encourage collaboration with regional agencies to support the production and oversight of this process.

In the creation of the ecoregion lists, MARSB is attempting to present a complex mix of plants that is representative of particular geographies and habitat types while also conforming to a set of refining guidelines. Is a particular plant native to the ecoregion in question? Was it broadly distributed throughout the region’s historical habitat? Does it lend itself to production? Does it lend itself to restoration? Will it be a quality addition to a seed mix?

Some state listed RTE (rare, threatened, endangered) taxa meet the requirements of these criteria and have been included in our lists. While some plants owe their rarity to a genetic propensity for low reproduction rates, others were once more common and have seen their ranges reduced by habitat loss and invasive species encroachment. Additionally, some are dependent on disturbance regimes that have been managed out of existence through fire suppression, herbicide use, or other means. Their inclusion in our lists is intended to not only acknowledge their role in current or potentially restorable environments, but also their capacity for production for those means in plant production.