''Lithospermum parviflorum'', commonly called Eastern Prairie Marbleseed,
/ref> is a species of flowering plant in the forget-me-not family. It is native to the eastern North America.
This species is a robust perennial. It produces a cyme of cream colored flowers in late spring and early summer.[
Although widespread, this species is spotty and uncommon throughout much of its range. Its preferred habitat, somewhat dry calcareous woodlands, barrens, and glades,][ has been heavily impacted by agriculture and other land-use changes. The only area this species is considered secure in is the ]Ridge and Valley
The Ridge-and-Valley Appalachians, also called the Ridge and Valley Province or the Valley and Ridge Appalachians, are a physiographic province of the larger Appalachian division and are also a belt within the Appalachian Mountains extending ...
region of Virginia and West Virginia.[ In Missouri, it has been known to be in decline since the 1950s.]Lithospermum bejariense
''Lithospermum bejariense'', known by the common name western marbleseed, is a species of flowering plant in the borage family. It is native to the Southeastern United States, where it is in found rocky barrens and glades in calcareous
Calcare ...
'' by having shorter corollas (6-10mm) and nutlets that form a collar around the base. It can be distinguished from the cedar glade endemic '' Lithospermum molle'' by having leaves with erect pustular-based hairs.[ Some rare collections from southern Kentucky appear to be intermediate with ''Lithospermum molle''.][
]
References
{{Taxonbar, from=Q17416629
parviflorum