Scientific name: Marshallia mohrii Beadle & F.E. Boynton Common name: Cosa Barbara Buttons Family: Asteraceae: Composite Legal status: Threatened in Georgia; Threatened in United States Flowering period: June; flowers pale lilac-purple Habitat: Grassy glades, meadows, along streams Comments: Dr Charles Mohr (1824-1901) a naturalist and a botanist from Division Of Forestry, U.S. Department of Agriculture, from Mobile Alabama, discovered this species in Cullman County, Alabama on June 24, 1893. In 1901 Chauncey D. Beadle and Frank E. Boynton described Marshallia mohrii. Image: Marshallia mohrii Beadle & F.E. Boynton in the Flatwoods of the Berry College Campus, Mt. Berry, Oostanaula River Valley, Floyd County, Northwest Georgia on June 03, 2007.

Description: "Perennial 05- 2.5 feet (15.2 - 76.2 cm) tall ; leaves ovate-lanceolate, 6-10 inches (15.3 - 25.4 cm) long, including the petiole, 3/8 - 1.25 inches (1.8 - 3.2 cm) wide, the uppermost much reduced in size, obtuse, gradually narrowed into the petiole, which is as long as the blade, the uppermost acute or obtuse, sessile, prominently 3-nerved, glabrous, entire, of a firm texture in age; stem angled, striate, glabrous to near the top, branched above the middle; heads usually several, containing from 30 to 75 or more flowers; involucral bracts thin at flowering time, ovate-lanceolate, acute at the apex, with conspicuous hyaline borders below the middle; corollas slender, pubescent, slightly if at all dilated at the throat; pappus scales acute; achenes ribbed, very hairy; chaff of the receptacle linear, acute."- Charles Mohr, 1901.

References:
1. Mohr, Charles. Plant Life Of Alabama. Contributions From U.S. National Herbarium. Vol.VI. July 31, 1901. Washington: U.S. Department Of Agriculture, 1901.; (809-810.)
2. Image by Zvezdana Ukropina-Crawford

Last updated on January 18, 2008.

Botanical explorations in Floyd County, Georgia