PLANT PROFILE

Vernonia glauca
Broadleaf Ironweed


Vernonia glauca
Vernonia glauca
This specimen was discovered 2004 by Gerry Moore, PhD.
Britton & Brown
Botanical name: Vernonia glauca
Common name: Broadleaf Ironweed
Group: dicot
Family: Asteraceae
Growth type: forb/herb
Duration: perennial
Origin: native
Plant height: 3 - 5'
Foliage: alternate, simple
Flower: Deep purple loose upright flower clusters
Flowering time: late July - mid September
Habitat: rich upland woods, avoiding the coastal plain southward.
Range in New Jersey: one known population, Cumberland County
Heritage ranking, if any: S1 State endangered
Distribution:
Misc. One of the features distinguishing this species from V. noveboracensis is the pappus being creamy or stamineous with involucres 6-8 mm high. Cf. with V. noveboracensis where the pappus is purplish or purple-tinged, brownish-purple, , or a dark tawny,¨›with involucres 7-12 mm high. V. glauca is shorter and has broader leaves. Slender stem, glaucous, glabrous. Upright, spreading.
Achenes 3-3.5 mm long
Species name glauca means "blue-green".