Mimosa microphylla is known by the common names Littleleaf Sensitive-briar, Eastern Sensitive-briar, Sensitive Briar. This plant grows more as a ground cover in north Georgia; I've seen it in Walton, Barrow and Wilkes counties. At Fort Yargo State Park it grows along the lake shore near the Wil-A-Way Recreation Center (segment 9), south of the Fishing Area on the cliff by the slip-rail fence (segment 13), and east of the swimming beach (segment 14). This plant begins to bloom in mid June.
A plant growing on the shoreline at Fort Yargo State Park (segment 9).
A closer view.
Growing along the roadside in Walton County; this is one of the largest areas covered by Mimosa microphylla in the area.
Close up views of the bloom.
The leaves before and after being touched.
Seed pods developing.
A close up of a developing seed pod; these are very spiny.
A ‘ripe’ seed pod that has split longitudinally and dispersed its seeds.
A seed pod that still contains seeds.
A close up showing the seeds.
Mimosa microphylla (Littleleaf Sensitive-briar) is native to the United States. It grows from Virginia, Kentucky and Illinois south to Mississippi and .Florida; it also grows in Louisiana and Texas.
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- United States Department of Agriculture Plants Database: Mimosa microphylla (Littleleaf Sensitive-briar)
- University of North Carolina Herbarium: Mimosa microphylla
- Southeastern Flora: Littleleaf Sensitive-briar (Mimosa microphylla)
- Natural and Naturalized Plants of the Carolinas and Georgia: Mimosa microphylla (Eastern Sensitive-briar)
- Alabama Plants: Mimosa microphylla (Sensitive Briar)
- 2010: Year Of The Wildflower – Wildflower Index