*Lonicera maackii (Ruprecht) Herder. Amur Honeysuckle. Phen: May-Jun. Hab: Suburban woodlands, moist forests, fencerows, especially in areas with circumneutral soils. Dist: Native of e. Asia (Korea, China, Japan). This is one of worst "shrub-weeds", aggressively invasive in various parts of eastern North America, as in the vicinity of DC and in calcareous substrate parts of the interior South.

Origin/Endemic status: E. and se. Asia

Other Comments: See Luken & Thieret (1994) for a detailed account of this species, its discovery, nomenclature, and issues regarding its invasiveness.

Synonymy: = Ar, C, GrPl, Il, K1, K3, K4, Mi, Mo2, NcTx, NE, NY, Pa, Tn, Va, Ferguson (1966a), Rehder (1903); = n/a – F, RAB, Tat; > Lonicera maackii (Rupr.) Herder var. erubescens (Rehder) Q.E.Yang, Landrein, Borosova & Osborne – Lin et al (2013); > Lonicera maackii (Rupr.) Herder var. maackii – Lin et al (2013)

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Heliophily: 5