Introduced Species:  Orange and Meadow Hawkweeds (Hieracium aurantiacum and H. pratense [also listed as H. caespitosum]) Characteristics:  Hawkweeds are low-growing plants with shallow fibrous roots and a basal rosette of […]

Introduced Species:  Butterfly Bush (Buddleia davidii) Characteristics:  Butterfly bush is a weedy perennial shrub that grows up to 4 meters (12 ft) tall.  The opposite, lance-shaped leaves are greyish-green on

Introduced species:  Common Teasel (Dipsacus fullonum syn. Dipsacus sylvestris) Characteristics:  Common teasel is a weedy biennial.  First-year growth is a rosette of ovoid (when younger) to oblong leaves with a

Introduced species: Spotted jewelweed (Impatiens capensis) Description: A far more common non-native Impatiens species than last month’s feature, spotted jewelweed is–as one might expect from a congener–similar in some respects,

Introduced species: Small-flowered touch-me-not (Impatiens parviflora) Description: Don’t panic! This isn’t the impatiens from your Mothers’ Day hanging basket; the only similarity is those exploding seed pods (see below). Small