Lycophytes: Isoetales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Isoetes piedmontana
FAMILY
Isoetaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Learn more about Isoetes from the Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Isoetes piedmontana
FAMILY
Isoetaceae
INCLUDED WITHIN Flora of North America
Isoetes virginica
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2015)
Isoetes piedmontana
SYNONYMOUS WITH Georgia Quillworts (Musselman, 2001)
Isoetes piedmontana
INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 005-01-001?:
Isoetes melanopoda FAMILY Isoetaceae
INCLUDED WITHIN Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Isoetes virginica
COMMON NAME:
Piedmont Quillwort
To see larger pictures, click or hover over the thumbnails.
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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.
)
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.
)
Peter Schafran psc_pied1
May Muscogee County GA
Flat Rock Park
Like all granite outcrop Quillworts, I. piedmontana has phyllopodia, per Georgia Quillworts (Musselman, 2001).
)
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 (Boom, 1982).
)
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 (Boom, 1982).
)
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 (Boom, 1982).
)
Peter Schafran psc_pied5
June Wake County NC
Mitchell Mill State Natural Area
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Isoetes piedmontana
FAMILY
Isoetaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Isoetes piedmontana
FAMILY
Isoetaceae
INCLUDED WITHIN
Flora of North America
Isoetes virginica
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2015)
Isoetes piedmontana
SYNONYMOUS WITH
Georgia Quillworts (Musselman, 2001)
Isoetes piedmontana
INCLUDED WITHIN
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 005-01-001?:
Isoetes melanopoda
FAMILY
Isoetaceae
INCLUDED WITHIN
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Isoetes virginica
2383
Fern/Fern ally
Perennial
Habitat: In seepage on or near granitic flatrocks, rarely on sandstone (Altamaha grit and Ridge and Valley), per Weakley's Flora
Native to the Carolinas & Georgia
Uncommon in Piedmont (rare in Coastal Plain)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
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!
- Field Guide to the Ferns and Other Pteridophytes of Georgia (Snyder & Bruce, 1986) p248
- The Ferns and Lycophytes of Texas (Diggs & Lipscomb, 2014) p063
- Ferns of Alabama (Short & Spaulding, 2012) p111
- Peterson Field Guide to Ferns of Northeastern and Central North America p368?
- Guide to the Plants of Granite Outcrops (Murdy & Carter, 2000) p92
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p173
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