Exotic species:  Milk thistle (Silybum marianum) Characteristics:  Milk thistle is a sparsely-branched, biennial thistle, growing up to 6 ft. (2 m) tall. The alternate, deeply-lobed leaves may reach 20 in. […]

Introduced species:  English hawthorn (Crataegus monogyna) Characteristics:  English (or common) hawthorn is a broadly spreading shrub or small tree, typically up to 6 m (20’) tall, with a dense crown.

Introduced species: Creeping woodsorrel (Oxalis corniculata) Description: Creeping woodsorrel–also called “sleeping beauty” (by the poetic) or “procumbent yellow sorrel” (by someone misusing the word “procumbent;” see below)–is a member of

Introduced species: Fennel (Foeniculum vulgare) Characteristics: Fennel is a perennial herb of the carrot family, with finely-dissected green leaves–similar to those of dill– and a strong anise scent. Leaves and

Invasive: Lemon balm (Melissa officinalis) Characteristics:  Lemon balm is a fast-spreading, perennial member of the mint family. Like many mints, this one has hairy, square stems and a strong scent