Barbara's Button

Marshallia graminifolia ( Grassleaf Barbara's Buttons )
A perennial, reaching up to 4 x 1 ( rarely over 2.5 ) foot in size, that is native to wet pine barrens in the southeastern U.S. ( from Louisiana to North Carolina; south to central Florida ).
The narrow, lance-shaped leaves are up to 13 x 0.5 ( rarely over 7 ) inches in size.
The flowers are pale pink.
Hardy zones 7 to 9.

Marshallia grandiflora
A perennial, reaching a maximum size of 3 x 1.5 ( rarely over 2 ) feet, that is native to streambanks in eastern North America ( southwest Pennsylvania; south to Tennessee to southwestern North Carolina ) where it is rare. In Maryland, it is only found in Garrett County where it may have become extinct. It is endangered in Pennsylvania where it is currently restricted to Fayette County. It is also critically endangered in Kentucky, Tennessee and North Carolina where it is restricted to single counties. It is currently widespread only in the mountains of West Virginia.
The leaves, up to 8 x 1.2 inches in size, are borne from basal rosettes.
The pink ( with blue-purple anthers ), daisy-like flowers, up to 1.3 inches across, are borne all summer long.
Hardy zones 4 to 9 in full sun to partial shade on moist soil.
Easy to propagate from seed, division and cuttings.

* photo taken on June 10 2013 in Columbia, MD


Marshallia obovata ( Piedmont Barbara's Buttons )
A clumping perennial, reaching up to 2 foot, that is native to the southeastern U.S. ( from far northwest Alabama to eastern Tennessee to south central Virginia; south to northwest Florida to central South Carolina ). It is endangered in Tennessee and Florida.
The narrow leaves are up to 5 inches in length. The basal rosette leaves are evergreen.
The white flowers, up to 1.3 inches wide, are borne atop branches stems during late spring to early summer.
Hardy zones 6 to 8 in full sun to partial shade on moist, well drained soil.