Juncus acuminatus Michaux. Subgenus: Juncus. Section: Ozophyllum. Common name: Sharp-fruited Rush. Phenology: May-Aug. Habitat: In a range of natural and disturbed, saturated and seasonally flooded wetlands. Distribution: ME and NS to ON and MN, south to n. peninsular FL, TX, and n. Mexico; S. Mexico and Honduras; BC to CA.
ID notes: Capsules intermediate in size between the larger J. debilis, and the smaller and J. elliottii. Capsules light-tan in J. debilis and deep chestnut to nearly black in J. elliottii.
Origin/Endemic status: Native
Taxonomy Comments: Applequist (2024) reported the recommendation of the Nomenclatural Committee for Vascular Plants to conserve Juncus acuminatus Michaux 1803 over Juncus acuminatus Balbis 1801-1802.
Synonymy ⓘ: = AqW, C, Can, ETx1, F, FNA22, G, GrPl, GW1, Il, K4, Meso6, Mi, Mo1, NcTx, NE, NY, Pa, RAB, S, Tat, Tn, Tx, Va, W, WH3, WV, Bridges & Orzell (2008), Kirschner (2002b), Kirschner (2002c); = Verojuncus acuminatus (Michx.) Záv.Drábk. & Proćków — Proćków & Záveská Drábková (2023). Basionym: Juncus acuminatus Michx. 1801
Links to other floras: = Juncus acuminatus - FNA22
Show parent genus | Show parent in key(s)
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: OBL
- Eastern Mountains and Piedmont: OBL
- Great Plains: OBL
- Midwest: OBL
- Northcentral & Northeast: OBL
Heliophily ⓘ: 8
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© Eric M Powell, some rights reserved (CC BY-NC), uploaded by Eric M Powell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Eric M Powell, some rights reserved (CC BY-NC), uploaded by Eric M Powell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Eric M Powell, some rights reserved (CC BY-NC), uploaded by Eric M Powell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Eric M Powell, some rights reserved (CC BY-NC), uploaded by Eric M Powell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© theo_witsell, some rights reserved (CC BY-NC), uploaded by theo_witsell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷Feedback
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