Vernonia noveboracensis
New York Ironweed

Vernonia noveboracensis
Vernonia noveboracensis
Photo courtesy Renee Brecht
Britton & Brown
Botanical name: Vernonia noveboracensis
Common name: New York Ironweed
Group: dicot
Family: Asteraceae
Growth type: forb/herb
Duration: perennial
Origin: native
Plant height: 3 - 7'
Foliage: alternate, simple
Flower: purple flowerheads 1/2 to 3/4 inch across, in clusters 3-5 inches across
Flowering time: August-September
Habitat: moist thickets and stream edges, low wet woods and marshes, esp. near the coast
Range in New Jersey: statewide
Heritage ranking, if any: n/a
Misc. USDA lists as Facultative wetland species: Usually occurs in wetlands (estimated probability 67%-99%), but occasionally found in non-wetlands.

One of the features distinguishing this species from V. glauca is the pappus purplish or purple-tinged, brownish-purple, or a dark tawny, with involucres 7-12 mm highbeing . Cf. with V. glauca where the pappus is creamy or stamineous with involucres 6-8 mm high. Upright growth pattern; 30-50 flowered. Achenes 4-4.5mm long.