|early stoneroot, whorled horse-balm, whorled stoneroot|
|Baldw. ex Elliot|
The following Participating Institutions are custodians for this species in the CPC National Collection:
The Holden Arboretum
The conservation of Collinsonia verticillata is fully sponsored.
Lindsey Parsons contributed to this Plant Profile.
Collinsonia verticillata is a woodland herb that grows from a hard, thickened rhizome. It produces flowers that range in color from white to pink and lavender in May and April. It produces fruit in June and July. There are 2-3 pairs of leaves, and unbranched inflorescence. It flowers with 4 stamens. The U.S. Forest Service, due to its limited range in the Southern Appalachian Mountains, has listed it as Sensitive. Very little is known about this species, although researchers have been able to successfully transplant mature plants to regional botanic gardens and arboreta for observation.
Distribution & Occurrence
- North Carolina
- South Carolina
Mixed mesophytic and cove forests of the southern Appalachians and occasionally in other habitats with extremely rich soil (Jess Peirson personal communication).
|Unknown, but field studies of populations in Georgia, Tennessee and Ohio in spring of 2001 showed that those populations were healthy. (Jess Peirson personal communication)|
Conservation, Ecology & Research
Habitat destruction by road and residential construction
(Jess Peirson personal communication)
A.L. Fone studied seed output in various plant forms of this species in the 1980's.
Harrington, H.D. 1964. Manual of the plants of Colorado. Chicago, IL: The Swallow Press Inc. 666p.