Trollius laxus ssp. laxus

Common Names:
American globe-flower, spreading globe-flower
Fisch. & C.A. Mey.
Growth Habit:
CPC Number:
Profile Contributors:
Dawn M. Gerlica and Lindsey Parsons
Fully Sponsored

Reference Links

ITIS - Tropicos - USDA Plants - Fish & WildLife

Participating Institutions

The following Participating Institutions are custodians for this species in the CPC National Collection:
The Holden Arboretum
Cornell Botanic Gardens

The conservation of Trollius laxus ssp. laxus is fully sponsored.
Dawn M. Gerlica and Lindsey Parsons contributed to this Plant Profile.


To date, this species is found in approximately 40 populations, most of them with fewer than 100 individuals, in eastern North America. Conservation activities for this species are numerous in its range, and include monitoring, seed banking (three occurrences), ecology and population genetics work, and propagation. Because of this work, the taxon was recently elevated to the full species level, and work has shown that this species is the only polyploid member of its genus. (Jones 2001)

Trollius laxus is a perennial that grows to 12-20 inches tall. It has 1 to 1 1/2 inch diameter pale yellow or cream colored flowers. Each flower has 15-25 petals, and it blooms from April to June. The leaves of this species are palmately cut, lobed leaves that are 3-5 inches wide. After blooming, the leaves increase dramatically in size. (TNC 1987)

Distribution & Occurrence


Conservation, Ecology & Research