FLODMAN THISTLE, Cirsium
flodmani (Rydb.) Arthur. 1, lower part of leafy stem; 2,
upper portion of stem; 3, seed. Perennial, deep-rooted, reproducing
from creeping rhizomes and seed. Stem 2 to 3 feet (60 to 90 cm)
tall, covered with white felt, sparingly branched. Leaves in a rosette,
light green to grayish on upper side, white with matted hair on lower side.
First rosette leaves may be entire; later rosette and stem leaves become
increasingly divided into needlelike lobes, cut sometimes to the midrib.
Flowers reddish-purple, borne in heads surrounded by prickly bracts
and often subtended by small, prickly leaves at base of head. Dorsal ridge
of bracts may be resinous and sticky. Fruits 1-seeded (achenes),
about 1/8 inch (3 mm) long. Found in pastures, fields, and meadows.
often a problem in rural cemeteries.