*Scleranthus annuus Linnaeus ssp. annuus . Knawel, Annual Knawel, Knotgrass. Phen: Mar-Oct. Hab: Fields, ditches, roadsides, other disturbed areas. Dist: Native of Mediterranean Europe, n. Africa, and w. Asia.

Origin/Endemic status: Europe

Taxonomy Comments: There are seven other subspecies recognized outside our region (Thieret & Rabeler in FNA 2005).

Synonymy: = Ar, FNA5, NY; < Scleranthus annuus L. – C, F, Fl4, G, GrPl, Il, K1, K3, K4, Mi, NE, Pa, RAB, S, S13, Tat, Tn, Va, W, WH3, WV

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Wetland Indicator Status:

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

Heliophily: 9