In this episode we take a stroll on a big ol' polished granite knob Southeast of Atlanta, Georgia to see some of the plants of the Southeastern United States that thrive on the thin soils of granite knobs and limestone glades.
Schoenolirium croceum (Asparagaceae)
Bignonia capreolata (Bignoniaceae)
Packera dubia (Asteraceae)
Sedum smallii (Crassulaceae)
Mononeuria uniflora (Caryophyllaceae)
Isoetes mela
Chionanthus virginicus (Oleaceae)
Rubus pensilvanicus (Rosaceae)
Thanks to Josh Wayne for help with the production of this video.
Arabia Mountain Geology : the rock here is primarily metamorphic, formed by "cooking" the prexisting rock with a giant ball of magma (a pluton) that rose from beneath and has been subsequently uplifted and eroded over hundreds of millions of years.
Key Geologic Facts from this Region :
*the pluton that became Arabia mountain formed as a result of a continental
collision between ancient North America and Ancient Africa,
400 million years ago, long before the two continents split apart again nearly 300 million years later.
The Appalachian Mountains were built over 3 or 4 subsequent OROGENIES
(mountain-building events) Occurring from 500 million to 250 million years ago.
Lexa Prole
2025-05-18 16:06:13 +0000 UTCEric Wagner
2025-05-13 20:18:02 +0000 UTCApril Hughes
2025-05-08 02:39:35 +0000 UTC