Native & Naturalized Plants of the Carolinas & Georgia


2383

Fern/Fern ally
Perennial

Native to the Carolinas & Georgia
Documented growing wild in GA NC SC

Uncommon in Piedmont, rare in Coastal Plain (an endemic)

Look for it in seepage on granitic flatrocks and on Altamaha grit, per Weakley's Flora

map
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...Wet

LEAVES:
Deciduous
Simple
Leaves whorled, at least at maturity

FRUIT:
Spring/Summer/Fall

 

TO LEARN MORE about this plant, look it up in a good book!



Lycophytes: Isoetales

WEAKLEY'S FLORA (5/21/15):
Isoetes piedmontana   FAMILY Isoetaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Isoetes piedmontana   FAMILY Isoetaceae

LESS THAN VASCULAR FLORA OF THE CAROLINAS (1968) 005-01-001?:
Isoetes melanopoda   FAMILY Isoetaceae

LESS THAN Flora of North America
Isoetes virginica

(?) SYNONYMOUS WITH Isoetes virginica var. piedmontana

 

COMMON NAME:
Piedmont Quillwort


Click or hover over the thumbnails to see larger pictures.

image of Isoetes piedmontana

Alan Cressler    alc_4341844627_b

February    Muscogee County    GA

Flat Rock County Park

The most common quillwort on granite flat rock environments in Georgia, per Alan Cressler.

image of Isoetes piedmontana

Alan Cressler    alc_i_piedmontana

February    Gwinnett County    GA

Tribble Mill County Park

This winter ephemeral goes dormant when weather gets hot and water dries up, per Alan Cressler.

image of Isoetes piedmontana

Peter Schafran    psc_pied1

May    Muscogee County    GA

Flat Rock Park

Like all granite outcrop Quillworts, I. piedmontana has phyllopodia, per Georgia Quillworts. Tipularia (Musselman, 2001).

image of Isoetes piedmontana

Peter Schafran    psc_pied2

May    Muscogee County    GA

Flat Rock Park

Microspores echinate, usually brownish [here shown fertile microsporangia], per Synopsis of Isoetes in the Southeastern United States. Castanea (Boom, 1982).

image of Isoetes piedmontana

Peter Schafran    psc_pied3

May    Pike County    GA

Found in shallow pools on granite (vs. I. virginica in meadows & low woods), per Synopsis of Isoetes in the Southeastern United States. Castanea (Boom, 1982).

image of Isoetes piedmontana

Peter Schafran    psc_pied4

June    Wake County    NC

Mitchell Mill State Natural Area

Plants solitary; leaves whorled at maturity, 7-15cm in length, per Synopsis of Isoetes in the Southeastern United States. Castanea (Boom, 1982).

image of Isoetes piedmontana

Peter Schafran    psc_pied5

June    Wake County    NC

Mitchell Mill State Natural Area