En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Definition of what constitutes a native plant

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.

Need help with plant identification, visit the plant identification page.
 
rate this answer
1055 ratings

Tuesday - January 23, 2007

From: Boston, MA
Region: Northeast
Topic: Best of Smarty, General Botany
Title: Definition of what constitutes a native plant
Answered by: Damon Waitt

QUESTION:

Hello, I am doing research concerning "native plants" for the Northeast. I am "befuddled" as I am finding conflicting definitions for what constitutes a native plant. Do you have a good definition. Thank you so much for your time.

ANSWER:

Although the term "Native Plant" has become firmly entrenched in the botanical, horticultural and, to some extent, the public vocabulary there is surprisingly little consensus on its definition despite widespread use (see definitions below).

Clearly, there is no "one size fits all" definition of native plant, although a closer inspection reveals that there are some common threads shared by most. The first common thread is the human factor. The human element is either implied in statements like “occurred, grows or evolved naturally” or stated explicitly in statements like “not introduced by man, without direct or indirect human intervention, or prior to European contact”. Native plant definitions that exclude humans or arbitrarily assign a point in time before which (but not after which) human intervention is allowed are, by default, definitions that assume humans are not part of the natural world. Nevertheless, the human exception appears to be a key and, sometimes, difficult to document, criteria when assigning native status to a plant.

The second common thread is place. Each definition defines a native plant as occupying a particular area, region, habitat or ecosystem to distinguish native from non-native. This element introduces geographic confusion to a native plant definition. To whit, a species can be native to the United States (but non-native to a specific state) or native to a state (but non-native to a particular area within that state). By this line of reasoning, all species are native to planet earth (but may be non-native to any particular place on the planet).

In my opinion the best native plant definitions are the ones that incorporate the provenance and evolutionary history of a plant group or lineage. Take, for example, the definition offered by Wasowski in The American Gardener[1] in 1998, “Native plants should be defined as those that have evolved and adapted to a specific location and have remained genetically unaltered by humans.” This definition takes into account time and place, as well as the human element. More importantly, it implies a connection between generations through a shared evolutionary ancestry.

So what is a native plant? It is actually pretty simple to summarize Wasowki to define a native plant as … a plant that occurs naturally in the place where it evolved.

Native Plant Definitions

A population of plants within a defined geographic area that exist there without direct or indirect human introduction (Andrea De-Long Amay after lunch with Joe and Damon)

One that exists in a given region through non-human introduction, directly or indirectly (Andrea De-Long Amaya, Lady Bird Johnson Wildflower Center)

A plant occurring naturally in an area and not introduced by man; indigenous (GardenWeb)

With respect to a particular ecosystem, a species that, other than as a result of an introduction, historically occurred, or currently occurs in that ecosystem (US Fish and Wildlife Service)

A Native plant is one that occurred naturally has existed for many years in an area. These plants can be trees, flowers, grasses or any other plant. (Wikipedia)

All indigenous, terrestrial, and aquatic plant species that evolved naturally in an ecosystem (US Forest Service)

A plant that lives or grows naturally in a particular region without direct or indirect human intervention (USDA and (US National Arboretum)

Any plant that occurs and grows naturally in a specific region or locality (The Garden Helper)

Native plants are those that evolved naturally in North America. More specifically, native plants In a particular area are those that were growing naturally in the area before humans introduced plants from distant places. In eastern and central North America, native plants typically grew in communities with species adapted to similar soil, moisture, and weather conditions. Some of the widespread communities included oak-hickory-chestnut and beech-maple forests, tallgrass and shortgrass prairies, and freshwater marshes. Additional communities occupied specialized niches, including savannahs, fens, bogs, flood plains and alpine areas. (Wild Ones)

A native plant species is one "that occurs naturally in a particular region, state, ecosystem, and habitat without direct or indirect human actions" (Federal Native Plant Conservation Committee, 1994) A native plant, within a specified geographical region of interest, is a plant species (or other plant taxon) currently or historically present there without direct or indirect human intervention. (Larry Morse, L.E.M. Natural Diversity) Any plant which is a member of a species which was present at a given site prior to European contact (California Native Plant Society)

[1] Wasowski, Andy. "Provenance, defining our terms.(native plants)." The American Gardener 77.6 (Nov-Dec 1998): NA.

 

More General Botany Questions

Fragrance in fragrant plants.
August 21, 2013 - Why are some flowering plants known for fragrance not fragrant or as fragrant? Is it a nutrition deficiency or just the plant?
view the full question and answer

Books on Lilies
August 27, 2006 - Dear Sir, I am looking for a book covering the Lily Family as a whole, i.e., it should preferably also discuss other Genera than Lilium only. I am especially interested in Lily members occurring in t...
view the full question and answer

USDA Hardiness Zone of Rancho Bernardo, CA
October 01, 2009 - What plant zone is Poway, Rancho Bernardo CA?
view the full question and answer

What caused purple heartwood in my Tuliptree?
June 15, 2009 - My Tulip tree was hit by lightning and all bark from the base of the tree up to 50 feet was blown off. The tree also sustained a significant crack through the trunk. When the tree was cut down, we...
view the full question and answer

Information about Turk's Cap for school project
October 19, 2012 - Hello, my name is Veronica. I am doing a Species Study on Turk's Cap at Clint Small Middle School in the Green Tech Academy. I would like to learn more on my Native Texas Species. I am contacting you...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center