Flora of North America species comparison

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Scleranthus annuus

Scleranthus perennis

annual knawel, German knotgrass, scléranthe annuel

perennial knawel, scléranthe vivace

Scleranthus annuus

Scleranthus perennis
Distribution
from FNA
AL; AR; CA; CT; DC; DE; FL; GA; ID; IL; IN; KS; KY; LA; MA; MD; ME; MI; MN; MO; MS; MT; NC; NE; NH; NJ; NY; OH; OK; OR; PA; RI; SC; TN; VA; VT; WA; WI; WV; AB; BC; NB; NF; NS; ON; PE; QC; SK; Europe; w Asia; n Africa
[WildflowerSearch map]
[BONAP county map]
from FNA
CT; MA; MI; WI; QC; c Europe; w Asia
[BONAP county map]
Discussion

Subspecies 8 (1 in the flora).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Subspecies 5 (1 in the flora).

In the flora area, Scleranthus perennis is probably best established in Wisconsin; R. A. Schlising and H. H. Iltis (1961) reported it from four counties there, the first collection made in 1928.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 5, p. 150. FNA vol. 5, p. 151.
Parent taxa Caryophyllaceae > subfam. Alsinoideae > Scleranthus Caryophyllaceae > subfam. Alsinoideae > Scleranthus
Sibling taxa
S. perennis
S. annuus
Subordinate taxa
S. annuus subsp. annuus
S. perennis subsp. perennis
Name authority Linnaeus: Sp. Pl. 1: 406. (1753) Linnaeus: Sp. Pl. 1: 406. (1753)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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