Flora of the Southeastern United States
2022 Edition


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Geum radiatum Michaux. Spreading Avens, Cliff Avens. Phen: Jun-Aug; Jul-Sep. Hab: High elevation rocky summits, in thin soil at tops of cliffs and on ledges (where not trampled), in pockets of soil on nearly vertical portions of cliffs, in open grassy balds, around Rhododendron catawbiense in grassy balds, or in grassy areas at bases of cliffs (where succession by shrubs is prevented by accumulation of seepage ice and by stone fall). Dist: Ranging from Ashe County, NC (Phoenix Mountain) south and west to Sevier County, TN (Mount Leconte) and Transylvania County, NC (the Devil's Courthouse), restricted to "pseudo-alpine" rock outcrops and grassy meadows near the summits of the higher peaks of the Southern Blue Ridge, notably Bluff Mountain, Three Top Mountain, Phoenix Mountain, and The Peak (Ashe County, NC), Grandfather Mountain (Watauga and Avery counties, NC), Grassy Ridge (Avery County, NC), Roan High Bluff (Mitchell County, NC), Mount Craig in the Black Mountains (Yancey County, NC), Craggy Pinnacle, Craggy Dome, and Craggy Gardens (Buncombe County), the Devil's Courthouse (Transylvania County, NC), and Mount Leconte (Sevier County, TN)

Origin/Endemic status: Endemic

Syn: = FNA9, K1, K3, K4, RAB, Tn, W, Robertson (1974); = Acomastylis radiata – Bolle (1933); = Parageum radiatum – Král (1966); = Sieversia radiata – S

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image of plant© Richard & Teresa Ware [image randomly selected]
image of plant© Edwin Bridges [image randomly selected]