Common Cocklebur (Xanthium stumarium)
Composite Family
Common
cocklebur is a large-seeded annual. If you get it, you better get rid of it or you are in
deep trouble.
Seed capsules (left) contain two seeds with different
dormancy characteristics. This is an example of somatic polymorphism: the same plant
produces seed with different characteristics.
Spotted stem and distinctive leaf shape.
Red stems,
light green flowering capsules, large leaves.
Same.
Light green
flowering, barbed, capsules.
Seedling
Another seedling
Yet more, another seedling.
An outline of a seedling.
Still yet another outline of a seedling.
Common
cocklebur is a large-seeded annual. If you get it, you better get rid of it or you are in
deep trouble.
Seed capsules (left) contain two seeds with different
dormancy characteristics. This is an example of somatic polymorphism: the same plant
produces seed with different characteristics.
Spotted stem and distinctive leaf shape.
