– Erika Lyon, OSU Extension Educator, Agriculture and Natural Resources, Jefferson and Harrison Counties (originally published in Farm and Dairy)
A reason cressleaf groundsel has spread so profusely is the tiny seed blows like dandelion seed.
As you are out in the field (or if you’ve driven by some neighboring fields) this spring, you may have noticed vast areas with yellow blooms. What are these plants and do they make good forages?
The answer is “It depends.” There are several plant species with yellow blooms around this time of year, so you need to take a closer look to know what you are dealing with.
Wintercress (yellow rocket)
A common invader of many fields is yellow rocket (Barbarea vulgaris), also known as wintercress. This plant, like many other invasive plants, was introduced to the US as an ornamental that has since spread.
It is a biennial plant, with a basal rosette stage growing close to the ground in the first year followed by flower and seed production in the second year. The flowers you see now indicate the plant is within its second growing season. Stems are erect with ridges, growing up to two feet tall, and the showy yellow flowers are grouped in a column-like inflorescence. Livestock that feed extensively on yellow rocket may develop gastrointestinal upset.
Cressleaf groundsel
Another plant in bloom this spring that Continue reading What’s in these fields of yellow? →