Sonchus oleraceus (Sow thistle)

Sonchus oleraceus L.

Sow thistle, common sow thistle, common sowthistle

Kingdom	Plantae	Plants, but not fungi, lichens, or algae
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Magnoliophyta	Flowering plants, also known as angiosperms
Class	Magnoliopsida	Dicotyledons—plants with two initial seed leaves
Subclass	Asteridae	A large class that encompasses asters
Order	Asterales	Flowering plants with a central disk flower and surrounding petals, like daisies
Family	Asteraceae	The aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers
Genus	Sonchus	Greek for “sowthistle”
Species	oleraceus	Resembling garden herbs or vegetables used in cooking

[An article has not been written yet.]

8/2/2008 · Flying Mountain, Bar Harbor, Maine
≈ 2½ × 2" (6 × 5.3 cm) ID is uncertain

7/5/2021 · Curtis Farm Preserve, Harpswell, Maine
≈ 3 × 3½" (7.5 × 9.8 cm)

7/5/2021 · Curtis Farm Preserve, Harpswell, Maine
≈ 3 × 4½" (7.5 × 11 cm)

7/17/2009 · Mt. Lebanon St, Trail, Pepperell, Massachusetts
≈ 1¼ × 1¾" (3.6 × 4.7 cm) ID is uncertain

9/29/2013 · Compass Harbor, Acadia National Park, Bar Harbor, Maine
≈ 5 × 5" (12 × 12 cm) ID is uncertain

2/24/2010 · Batiquitos Lagoon, Carlsbad, California
≈ 6 × 4½" (14 × 12 cm)

9/29/2013 · Compass Harbor, Acadia National Park, Bar Harbor, Maine
≈ 7 × 6" (18 × 14 cm) ID is uncertain

Sonchus oleraceus description by Thomas H. Kent, last updated 7 Oct 2021.

7/27/2015 · Two Lights, Cape Elizabeth, Maine
≈ 2 × 1¾" (5.6 × 4.6 cm)

7/17/2009 · Mt. Lebanon St, Trail, Pepperell, Massachusetts
≈ 3 × 3½" (7.7 × 9.6 cm) ID is uncertain

9/29/2013 · Compass Harbor, Acadia National Park, Bar Harbor, Maine
≈ 8 × 7" (20 × 16 cm) ID is uncertain

7/27/2015 · Two Lights, Cape Elizabeth, Maine
≈ 2½ × 2" (7.3 × 5.3 cm)

7/5/2021 · Curtis Farm Preserve, Harpswell, Maine
≈ 4 × 3" (10 × 7.4 cm)

7/27/2015 · Two Lights, Cape Elizabeth, Maine
≈ 4 × 2½" (9.9 × 6.6 cm)

2/24/2010 · Batiquitos Lagoon, Carlsbad, California
≈ 7 × 6" (17 × 14 cm)

2/24/2010 · Batiquitos Lagoon, Carlsbad, California
≈ 9 × 10" (24 × 25 cm)

Range: