What’s That Weed?
Invasive: Hairy bittercress (Cardamine hirsuta) Video field exploration This month’s weed is less of a threat to natural areas than many featured weeds–though it does show up there–but is one […]
Social distancing for…trees?
COVID-19 poses no threat to plants, but our leafy friends are no strangers to pandemics of their own: chestnut blight, Dutch elm disease, sudden oak death, and other pathogens have
Social distancing for…trees? Read More »
What’s That Weed?
Invasive: Mole Plant (Euphorbia lathyrus) Characteristics: Mole plant—a.k.a. gopher spurge or caper spurge—is an erect biennial (occasionally annual) herb, native to the Mediterranean region and eastward to western China. It
What’s That Weed?
Invasive: Scotch broom (Cytisus scoparius) Characteristics: Scotch broom is a perennial member of the pea family (Fabaceae). It is a deciduous shrub, 1-3 m (3 to 10 ft) tall, though
What’s That Weed?
Weed of the Month: Herb-Robert (Geranium robertianum) Characteristics: Herb-Robert—also called Robert’s geranium, or, colloquially, “stinky Bob”—is both a winter and spring annual with light-green, deeply dissected leaves. In late fall