*Scleranthus annuus Linnaeus ssp. annuus . Common name: Knawel, Annual Knawel, Knotgrass. Phenology: Mar-Oct. Habitat: Fields, ditches, roadsides, other disturbed areas. Distribution: 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, Can, FNA5, NY; < Scleranthus annuus L. — C, F, Fl4, G, GrPl, Il, K4, Mi, NE, Pa, RAB, S, S13, Tat, Tn, Va, W, WH3, WV, (basionym)
Links to other floras: = Scleranthus annuus ssp. annuus - FNA5
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
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.









Feedback
See something wrong or missing on about Scleranthus annuus ssp. annuus? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.
Horticultural Information
No horticultural data found for this taxon.