Both Quivira's wetlands and uplands have been impacted by invasive plant species.  Some, like cattail, common reed, honeylocust, and saltcedar, are present in some areas in large, monotypic stands.  Control and eradication, a primary management goal, is an ongoing challenge.  Below are some of the most common and persistent species.

Saltcedar (Tamarix gallica)	Honeylocust (Gleditsia tricanthos)
Russian Olive (Elaeagnus angustifolia)	Common Reed (Phragmites communis)
Cheatgrass (Bromus tectorum)	Siberian Elm (Ulmus pumila)
Eastern Redcedar (Juniperus virginiana)	White Mulberry (Morus alba)
Black Locust (Robinia pseudo-acacia)	Broad-leaved Cattail (Typha latifolia)
Bull Thistle (Cirsium vulgare)