Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Sonchus arvensis var. glabrescens
FAMILY
Asteraceae_
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Generally speaking, sowthistles resemble yellow-flowered wild lettuces (genus Lactuca), but the heads are much broader. Read more at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Sonchus arvensis ssp. uliginosus
FAMILY
Asteraceae_
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Sonchus arvensis ssp. uliginosus
SYNONYMOUS WITH Flora of North America
Sonchus arvensis ssp. uliginosus
INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-08-001:
Sonchus arvensis FAMILY Asteraceae_
SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Sonchus uliginosus
COMMON NAME:
Field Sowthistle, Perennial Sowthistle
To see larger pictures, click or hover over the thumbnails.
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Bruce A. Sorrie bas_sonchus_arvensis2
August Rensselaer County NY
Heads 30-50mm across in flower. Phyllaries and peduncles glabrous, per Weakley's Flora (2015).
)
Bruce A. Sorrie bas_sonchus_arvensis3
August Rensselaer County NY
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Sonchus arvensis var. glabrescens
FAMILY
Asteraceae_
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Sonchus arvensis ssp. uliginosus
FAMILY
Asteraceae_
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Sonchus arvensis ssp. uliginosus
SYNONYMOUS WITH
Flora of North America
Sonchus arvensis ssp. uliginosus
INCLUDED WITHIN
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-08-001:
Sonchus arvensis
FAMILY
Asteraceae_
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Sonchus uliginosus
3847
Forb
Perennial
Habitat: Disturbed areas, per Weakley's Flora
Non-native: Europe
Rare in NC Mountains (waifs in SC Coastal Plain)
Click here to see a map, notes, and images from Weakley's Flora of the Southeastern US.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
This plant may be causing problems in natural areas outside its native range, according to authorities such as:
DOES THE PLANT HAVE "MILKY SAP"?
Has milky sap (latex)
LEAVES:
Simple
Alternate
FLOWER:
Summer/Fall
Rays: Yellow
Disc: Absent
Ray flowers bisexual
Inferior ovary
FRUIT:
Summer/Fall
Dark brown
Achene
TO LEARN MORE about this plant, look it up in a good book!