OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Caryophyllales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Scleranthus annuus ssp. annuus   FAMILY Caryophyllaceae   Go to FSUS key



INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Scleranthus annuus   FAMILY Caryophyllaceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 5 (2005)

Scleranthus annuus ssp. annuus

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 071-01-001:

Scleranthus annuus   FAMILY Caryophyllaceae

INCLUDED WITHIN Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)

Scleranthus annuus

 

COMMON NAME:
Knawel, Annual Knawel, Knotgrass


         To see larger pictures, click or hover over the thumbnails.

image of Scleranthus annuus ssp. annuus, Knawel, Annual Knawel, Knotgrass

USDA / Selected Weeds of the US. 1970    swus_page_163a

        

image of Scleranthus annuus ssp. annuus, Knawel, Annual Knawel, Knotgrass

USDA / Selected Weeds of the US. 1970    swus_page_163b

        

image of Scleranthus annuus ssp. annuus, Knawel, Annual Knawel, Knotgrass

Keith Bradley    kab_s_annuus_0369

February    Lexington County    SC

Cymes congested, flowers numerous. Calyx tube coarsely ribbed, hardened, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

image of Scleranthus annuus ssp. annuus, Knawel, Annual Knawel, Knotgrass

JK Marlow    jkm200505_4610

May    Spartanburg County    SC

image of Scleranthus annuus ssp. annuus, Knawel, Annual Knawel, Knotgrass

JK Marlow    jkm200505_4618

May    Spartanburg County    SC

Prostrate, much-branched annual with a taproot. Leaves linear or subulate, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Scleranthus annuus ssp. annuus   FAMILY Caryophyllaceae

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Scleranthus annuus   FAMILY Caryophyllaceae

SYNONYMOUS WITH Flora of North America north of Mexico, vol. 5
Scleranthus annuus ssp. annuus

INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 071-01-001:
Scleranthus annuus   FAMILY Caryophyllaceae

INCLUDED WITHIN Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Scleranthus annuus

 

Find by SCIENTIFIC NAME:

3502

Forb
Annual

Habitat: Fields, ditches, roadsides, other disturbed areas, per Weakley's Flora

Non-native: Mediterranean Europe, northern Africa, western Asia

Common (uncommon in GA, uncommon in Mountains)

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

LEAVES:
Simple
Opposite
Leaves sessile
Margins entire
Leaves do not have stipules.

FLOWER:
Spring/Summer/Fall
5-lobed calyx
Petals absent
5-10 stamens, usually
Superior ovary

Inflorescence a cyme

FRUIT:
Spring/Summer/Fall
Utricle

 

TO LEARN MORE about this plant, look it up in a good book!



 


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