Isoetes butleri Engelmann. Butler's Quillwort. Phen: May-Jun. Hab: Seepage areas on calcareous glades, sometimes also in seepage on non-calcareous rocks. Dist: KY, IL, MO and e. KS south to e. TX and c. and nc. TX; disjunct eastwards in sc. KY, c. TN, n. GA and n. and c. AL.
Origin/Endemic status: Native
Taxonomy Comments: A diploid species (2n=22), genotype=BB.
Other Comments: See Taylor, O'Kennon, & Rehman (2012) for detailed information o this species in Texas.
Synonymy: = Ar, C, ETx1, F, FNA2, G, GrPl, Il, K1, K3, K4, Mo1, S13, Sf, Tn, TxFerns, Musselman (2001), Singhurst et al (2011)
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: OBL
- Eastern Mountains and Piedmont: FACW
- Great Plains: OBL
- Midwest: OBL
Heliophily: 8
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© Alan Cressler: Isoetes butleri, Limestone Glade, Chickamauga and Chattanooga National Battlefield Park, Catoosa County, Georgia 3 by Alan Cressler source | Original Image ⭷
© Alan Cressler: Isoetes butleri, Quillwort Glade, Kathy Stiles Freeland Bibb County Glades Preserve, The Nature Conservancy, Bibb County, Alabama 2 by Alan Cressler source | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷Feedback
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