Sonchus arvensis - Wikipedia
Sonchus arvensis, the field milk thistle, [2] field sowthistle, [3] perennial sow-thistle, [4] corn sow thistle, dindle, gutweed, swine thistle, or tree sow thistle, is a species of flowering plant in the family Asteraceae. S. arvensis often occurs in annual crop …
Perennial Sowthistle - SARE
All three species are annuals and have taproots rather than the extensive root system of perennial sowthistle. Because perennial sowthistle thrives best in wet soils, improving soil drainage can improve control. In particular, improving soil drainage will improve the ability of your crops to competitively suppress the weed.
Sonchus - Wikipedia
Sonchus is a genus of flowering plants in the tribe Cichorieae within the family Asteraceae [3] [5] and are commonly known as sow thistles (less commonly hare thistles or hare lettuces). Sowthistles are annual, biennial or perennial herbs, with or without rhizomes and a few are even woody (subgenus Dendrosonchus, restricted to the Canary ...
Perennial sowthistle - Extension at the University of Minnesota
How to identify perennial sowthistle. Perennial sowthistle (Sonchus arvensis) is a perennial herbaceous plant, reaches heights of two to five feet. Stem. Vertical, single stem; branches near the top into several flower stalks. Stems emit a sticky, milky sap with a …
Perennial sowthistle | CALS - Cornell CALS
Because perennial sowthistle thrives best in wet soils, improving soil drainage can improve control. In particular, improving soil drainage will improve the ability of crops to competitively suppress this weed.
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Perennial Sowthistle
Perennial sowthistle can form dense monospecific stands by the spread of its rhizome-like roots. At high densities perennial sowthistle can drastically reduce water resources and likely decreases native plant diversity. It may also modify or retard the successional establishment of native species (Butterfield et al. 1996). It is also a host to
Sonchus arvensis (Perennial Sowthistle) - Minnesota Wildflowers
Perennial Sowthistle is similar in appearance to Spiny Sowthistle (Sonchus asper) and Common Sowthistle (Sonchus oleraceus). Spiny Sowthistle has decidedly larger, spiny teeth on the leaves and larger lobes at the leaf base, and flowers typically less than 1 inch across.
Perennial sowthistle - Weeds - College of Agriculture and …
Perennial sowthistle (Sonchus arvensis L.) Life Cycle: Perennial. Emerges in the spring, flowers throughout the summer, and sets seed in the fall. Aboveground plant tissue dies after the first frost. Emergence: Germination is reduced at depths greater than 0.25 inch, with no seeds germinating from depths greater than 1 1/4 inches. Reproduction:
Adapted to a wide range of conditions (in-cluding saline soils), perennial sow-thistle does best in moist, fertile soils with full sun-light. It can become a serious problem in ri-parian areas, and chemicals from decaying sow-thistle inhibit the seed germination of other species.
Sonchus arvensis | Perennial Sow Thistle | Wildflowers of the …
Perennial Sow Thistle. Erect, with both flowering and nonflowering stems. Milky sap. Leaves entire to pinnately lobed; lower leaves 3–6 in., with short petioles. Upper leaf edges with thorny teeth, clasping stems; lowest lobes extend beyond …