|claspingleaf doll's daisy, Decurrent false aster|
|(Torr. & Gray) Wood|
|Kimberlie McCue, Ph.D.|
The following Participating Institutions are custodians for this species in the CPC National Collection:
The Holden Arboretum
Missouri Botanical Garden
The conservation of Boltonia decurrens is fully sponsored.
Kimberlie McCue, Ph.D. contributed to this Plant Profile.
Endemic to Illinois and central eastern Missouri, Boltonia decurrens is one of the rarest native species in this region. In fact, until two Missouri Botanical Garden botanists rediscovered it north of St. Louis in 1986, the Decurrent false aster was thought to have been extirpated from Missouri.
The species grows in open muddy bottomlands and is dependent upon disturbance from cyclical flooding to maintain the habitat suitable for its survival (USFWS 1990).
Distribution & Occurrence
Historically, this species was found on the shores of lakes and the banks of streams including the Illinois River (USFWS 1990). Today, it is most common in disturbed lowland areas where human-caused disturbance provides adequate habitat (Hickey 1988; USFWS 1988, 1990).
Commonly found with Acer saccharum, Populus deltoides, Salix nigra, Platanus occidentalis, Cornus racemosa (USFWS 1990).
|The number of sites with above ground plants varies from year to year. The majority of sites are in Illinois, only one, possibly two, are extant in Missouri (USFWS 1990). In some years some sites have been reported to have hundreds of thousands of individuals.|
Conservation, Ecology & Research
Smith, M.; Mettler, P. 2001. The role of the flood pulse in maintaining Boltonia decurrens, a fugitive plant species of the Illinois River floodplain: A case history of a threatened species. In: Middleton, B.S., editor. Flood Pulsing and Wetland Restorati