Native Plants

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Cressler, Alan

Isoetes butleri

Isoetes butleri Engelm.

Limestone Quillwort, Glade Quillwort, Butler's Quillwort

Isoetaceae (Quillwort family)

Synonym(s):

USDA Symbol: ISBU

USDA Native Status: L48 (N)

State-listed endangered species in IL and KY. A G4/S2 species in Alabama.

From the Image Gallery

1 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Leaf Complexity: Simple
Leaf Shape: Linear
Size Notes: 3-12(-20)cm in height.

Bloom Information

Bloom Color: Not Applicable
Bloom Notes: Non-flowering sporulating plant. Sporulates April through June.

Distribution

USA: AL , AR , GA , IL , KS , KY , MO , OK , TN , TX
Native Distribution: The Southeast and southern Midwest.
Native Habitat: Seasonally wet calcareous soils in glades and limestone outcrops.

National Wetland Indicator Status

Region:	AGCP	AK	AW	CB	EMP	GP	HI	MW	NCNE	WMVE
Status:	OBL				FACW	OBL		OBL

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Isoetes butleri in USDA Plants
FNA: Find Isoetes butleri in the Flora of North America (if available)
Google: Search Google for Isoetes butleri

Metadata

Record Modified: 2022-09-29
Research By: Joseph A. Marcus

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