Juncus ranarius Songeon & E.P. Perrier. Subgenus: Agathryon. Section: Tenageia. Frog Rush. Phen: Jun-Nov. Hab: Coastal sands and salt marshes. Dist: NF (Labrador) south to ME, MA, and DE; Europe. The American distribution is sometimes considered to be as an introduction from Europe.
ID notes: J. ranarius can only be mistaken for J. bufonius or depauperate J. tenuis. J. ranarius can be distinguished from J. tenuis by its small stature and inflorescence beginning just a few inches above the ground. Very similar to J. bufonus (see key).
Origin/Endemic status: Native
Synonymy ⓘ: = K4, NY, Kirschner (2002b); = Agathryon ranarium (Songeon & E.P.Perrier) Záv.Drábk. & Proćków – Proćków & Záveská Drábková (2023); = Juncus bufonius L. var. halophilus Buchenau & Fernald – C, F, G, K1, Mo1; = n/a – Tat; < Juncus ambiguus Guss. – AqW, K3; < Juncus bufonius L. – FNA22, K2, Pa, Kirschner (2002b)
Wetland Indicator Status:
Heliophily ⓘ: 9
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