Cirsium arvense (L.) Scop. Canada thistle, Canadian thistle, field thistle, California thistle, creeping thistle
Global_ID_number36335
Description
flowers: june,july,august,september,perianth:color:white,purple,
other features: adventitious,
leaves: alternate,simple,serrate,pinnate,lanceolate,
fruits: achene,
Plant: not carnivorous,broadleaf,perennial,autotrophic,herbaceous,
Discussion: Family Asteraceae.
Grows 1' to 5' tall.
Leaves: with crinkle edges and spiny margins, slightly lobed, smooth
Flowers: flowerheads small and numerous, clustered; head inflorescence; epigynous
Stems: tall, grooved stem branching at top; no spines on stem.
Roots:adventitious, rhizomes.
Seeds:
Fruits:
Special_diagnostic_characters: In Illinois they are biennial and form rosettes the first year and flower in the second year. Perennial habit and creeping underground stolons.