Weed
bull cotton thistle, taurus cotton thistle, Scotch thistle
AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
Broadly obovateObovate:
Inverted egg shaped with apical end the broadest.
Gray-brown with black mottling, yellow longitudinal lines
AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat. has large, wavy transverseTransverse:
Set crosswise, crossing or at right angles.
wrinkles that are somewhat glossy.
Rounded apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
with blunt stylarStylar:
The end of the fruit or seed that contains the style or the apical end.
mound
AchenesAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat. are blocky with rounded shoulders and transverseTransverse:
Set crosswise, crossing or at right angles.
wavy ridges.
State Noxious Weed: California, Colorado
Not included
Asteraceae
Onopordum tauricum Willd.
