Juncus tweedyi Rydberg. Subgenus: Juncus. Section: Ozophyllum. Narrow-panicled Rush, Short-tailed Rush. Phen: Jul-Sep. Hab: Bogs and seeps, peaty pond margins, beaver meadows, southward at high elevations. Dist: NL (Newfoundland) to MB south to MN, PA, and in mountains south to NC and n. GA (stated as unverified in TN by Tennessee Flora Committee 2015); scattered in w. North America.

ID notes:Much like J. subcaudatus but with darker capsules and more stiffly erect inflorescence branches.

Origin/Endemic status: Native

Taxonomy Comments: Knapp et al. [2022] discuss the priority of the name J. tweedyi over J. brevicaudatus.

Synonymy: = Juncus brevicaudatus (Engelm.) Fernald – AqW, C, F, FNA22, G, K1, K3, K4, Mi, NE, NY, Pa, RAB, Tn, Va, W, WV, Kirschner (2002b); = Verojuncus brevicaudatus (Engelm.) Záv.Drábk. & Proćków – Proćków & Záveská Drábková (2023)

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: OBL (name change)
• Eastern Mountains and Piedmont: OBL (name change)
• Great Plains: OBL (name change)
• Midwest: OBL (name change)
• Northcentral & Northeast: OBL (name change)