*Juncus compressus Jacquin. Subgenus: Agathryon. Section: Steirochloa. Roundfruit Rush. Phen: Jul-Aug. Hab: Disturbed ground, ditches, in saline or alkaline soils, especially along heavily salted roadways. Dist: Native of Europe. NS to ON, south to MD, PA, w. NY, MI, WS, and sporadically distributed westward in high elevations. Reported for MD and DE (Longbottom, Naczi, & Knapp 2016).

ID notes:Very similar to J. gerardi, but usually found in ruderal roadside habitats. The filaments and anthers are usually similar in length, whereas J. gerardii has much larger anthers than filaments. Both species have deep black capsules making them conspicuous among southeastern species.

Origin/Endemic status: Europe

Synonymy: = AqW, C, F, FNA22, G, Il, K1, K3, K4, Mi, NE, NY, Kirschner (2002b); = Agathryon compressum (Jacq.) Záv.Drábk. & Proćków – Proćków & Záveská Drábková (2023); = n/a – Tat

Show in key(s)

Show parent genus

Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACW
• Great Plains: FACW
• Midwest: OBL
• Northcentral & Northeast: FACW