Selected images for purple starthistle (Centaurea calcitrapa )
Purple starthistle is a biennial to perennial plant. It grows 2 to 3 ft. (0.6-0.9 m) tall. The stems and leaves are covered with fine hairs. Lower and basal leaves are divided or deeply lobed. Leaves become less divided toward the apex of the plant. Flowering occurs from July to October, when purple to pink blooms develop at the ends of the stems. Floral bracts are tipped with 1 in. (2.5 cm) long, straw colored spines. A native of southern Europe, purple starthistle produces prolific seeds and often invades floodplains, dry forests and grasslands. This plant is common in many western states and may occasionally be found in some Midwestern and Mid-Atlantic States.
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1354006 purple starthistle Centaurea calcitrapa Plant(s) Barry Rice |
1354005 purple starthistle Centaurea calcitrapa Plant(s) Barry Rice |
1459649 purple starthistle Centaurea calcitrapa Plant(s) Steve Dewey |
1459651 purple starthistle Centaurea calcitrapa Infestation Steve Dewey |
1354008 purple starthistle Centaurea calcitrapa Flower(s) Barry Rice |
1357019 purple starthistle Centaurea calcitrapa Flower(s) Malcolm Storey |
1459648 purple starthistle Centaurea calcitrapa Flower(s) Steve Dewey |
5374327 purple starthistle Centaurea calcitrapa Flower(s) Joseph M. DiTomaso |
1354007 purple starthistle Centaurea calcitrapa Feature(s) Barry Rice |
5391589 purple starthistle Centaurea calcitrapa Fruit(s) Barry Rice |
5458131 purple starthistle Centaurea calcitrapa Fruit(s) D. Walters and C. Southwick |
5458133 purple starthistle Centaurea calcitrapa Fruit(s) D. Walters and C. Southwick |
