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Asteraceae
Vernonia

not marked as a favorite taxon Vernonia glauca (Linnaeus) Willdenow. Common name: Appalachian Ironweed, Tawny Ironweed. Phenology: Late Jun-Sep; Aug-Oct. Habitat: Pastures, bottomlands, streamsides, roadsides, dry woods and slopes, powerlines and cleared forests. Distribution: NJ and PA south to GA, AL, and MS.

Glossary (beta!)

Origin/Endemic status: Endemic

Synonymy ⓘ: = C, F, FNA19, G, K4, NE, Pa, POWO, RAB, S, SE1, Tat, Va, W, WV. Basionym: Serratula glauca L. 1753

Links to other floras: = Vernonia glauca - FNA19

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Heliophily ⓘ: 8

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image #1 of Vernonia glauca© Bruce Sorrie
image #2 of Vernonia glauca© Alan Weakley source | Original Image ⭷
image #3 of Vernonia glauca© Gary P. Fleming | Original Image ⭷
image #4 of Vernonia glauca© Bruce A. Sorrie | Original Image ⭷
image #5 of Vernonia glauca© Grant Morrow Parkins | Original Image ⭷
image #6 of Vernonia glauca© Scott Ward | Original Image ⭷
image #7 of Vernonia glauca© Gary P. Fleming | Original Image ⭷
image #8 of Vernonia glauca© Scott Ward | Original Image ⭷
image #9 of Vernonia glauca© Alan Weakley source | Original Image ⭷
image #10 of Vernonia glauca© Gary P. Fleming | Original Image ⭷
image #11 of Vernonia glauca© Scott Ward | Original Image ⭷
image #12 of Vernonia glauca© Scott Ward | Original Image ⭷
image #13 of Vernonia glauca© Scott Ward | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect perennial of pastures, bottomlands and stream sides.

Stems: Stems branched in inflorescence, smooth or sparsely hairy and with a white-waxy coating

Leaves: Leaves alternate, on short petioles, oval to lance-shaped, toothed, dark green above and light green (usually with a white-waxy coating) beneath, minutely hairy.

Inforescence:

Flowers: Composite flowers (heads) in a branching, terminal cluster; heads purple-magenta, consisting of 30-48 spreading, tubular florets with 5 narrow lobes. Tiny triangular to lance-shaped bracts surround the bell-shaped base of each head.

Fruits: Fruit a cluster of white- to straw-tufted, ridged achenes.

Comments: An excellent nectar source for butterflies and bees.

Height: 3-5 ft.

plant sale text: Broadleaf ironweed is found mainly in the piedmont region in dry fields, making this plant a great selection for a dry sunny site. Its tall stature is sited well in the back of a perennial border or for naturalizing a field. Purple-topped stems in late summer are butterfly magnets! Broadleaf ironweed will spread by seed. Pinch back the tips in early summer to yield a bushier form less likely to lean.

bloom table text:

description: Erect perennial of pastures, bottomlands and stream sides.

stems: Stems branched in inflorescence, smooth or sparsely hairy and with a white-waxy coating

leaves: Leaves alternate, on short petioles, oval to lance-shaped, toothed, dark green above and light green (usually with a white-waxy coating) beneath, minutely hairy.

inflorescence:

flowers: Composite flowers (heads) in a branching, terminal cluster; heads purple-magenta, consisting of 30-48 spreading, tubular florets with 5 narrow lobes. Tiny triangular to lance-shaped bracts surround the bell-shaped base of each head.

fruits: Fruit a cluster of white- to straw-tufted, ridged achenes.

comments: An excellent nectar source for butterflies and bees.

cultural notes:

germination code: 1

native range: southeastern United States



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