Vernonia

Contains 6 accepted taxa overall.

Characteristics
Vernonia Schreb.
ASTERACEAE
IRONWEED
View USF Herbarium specimens of this family
Classification
ASTERALES
Vernonia
Citation
VERNONIA Schreber, Gen. Pl. 541. 1791, nom. cons. vs. Behen Hill 1762.
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TYPE: Vernonia noveboracensis (Linnaeus) Willdenow, typ. cons. (Serratula noveboracensis Linnaeus)
Distribution Map Present

This species have been reported in the counties highlighted.

Species
Scientific Name Common Name Herbarium Specimens Status Photos
Vernonia angustifolia TALL IRONWEED Native FACU (NWPL)
Vernonia blodgettii FLORIDA IRONWEED; BLODGETT'S IRONWEED Native FACW (NWPL) FACW (DEP)
Vernonia gigantea GIANT IRONWEED Native FAC (NWPL) FACW (DEP)
Vernonia missurica MISSOURI IRONWEED Native FAC (NWPL) FACW (DEP)
Vernonia noveboracensis NEW YORK IRONWEED Native FAC (NWPL) FACW (DEP)
Vernonia x concinna Native FACW (DEP)
Identification Key
1.  Leaves entire or toothed, lateral veins obscure to evident, at mid-stem the leaves 2-15 mm wide
2
1.  Leaves toothed, lateral veins distinct, at mid-stem the leaves 13-40 mm wide
4
2.  Leaves toothed, lateral veins slightly distinct, at mid-stem the leaves 9-15 mm wide
V. x concinna
2.  Leaves entire or very faintly toothed, lateral veins obscure, at mid-stem the leaves 2-9 mm wide
3
3.  Leaves narrowly lanceolate to linear, mostly 10-50 times longer than wide, upper surface typically scabrellous
V. angustifolia
3.  Leaves narrowly elliptic to linear-elliptic, mostly 8-18 times longer than wide, the upper surface smooth or nearly so
V. blodgettii
4.  Middle and inner phyllaries filiform to linear-lanceolate
V. noveboracensis
4.  Middle and inner phyllaries ovate to oblong-lanceolate
5
5.  Leaf lower surface usually scabrellous (with appressed, awl-shaped hairs), sometimes glabrescent, not or sparsely resin-gland-dotted; heads with 9-25(30) flowers
V. gigantea
5.  Leaf lower surface usually puberulous to tomentose or pannose (with erect or curled hairs), seldom glabrescent, conspicuously resin-gland-dotted; heads with 30-60 flowers
V. missurica
Genus Synonyms
Synonym Full Citation Basionym Type
Achyrocoma Achyrocoma (Cassini) Cassini, in Cuvier, Dict. Sci. Nat. 57: 341. 1828, non Achryocome Schrank 1824. BASIONYM: Vernonia Schreber, subg. Achyrocoma Cassini, in Cuvier, Dict. Sci. Nat. 26: 21. 1823. TYPE: Achyrocoma tomentosa Cassini
Acilepis Acilepis D. Don, Prodr. Fl. Nepal. 169. 1825. TYPE: Acilepis squarrosa D. Don
Ambassa Ambassa Steetz, in Peters, Naturw. Reise Mossambique 6: 364. 1864. TYPE: Ambassa hochstetteri (Schultz Bipontinus) Steetz (Vernonia hochstetteri Schultz Bipontinus
Bechium Bechium de Candolle, Prodr. 5: 70. 1836. TYPE: Non designatus.
Behen Behen Hill, Veg. Syst. 4: 41. 1762, nom. rej. vs. Vernonia Schreber 1791. TYPE: Non designatus.
Candidea Candidea Tenore, Atti Reale Accad. Sci. Sez. Soc. Reale Borbon 4(Bot.): 104. 1839. TYPE: Candidea senegalensis Tenore
Centrapalus Centrapalus Cassini, Bull. Sci. Soc. Philom. Paris 1817: 10. 1817. TYPE: Centrapalus galmensis Cassini
Claotrachelus Claotrachelus Zollinger & Moritzi ex Zollinger, Natuur-Geneesk. Arch. Ned.- Indie 2: 267, 565. 1845. TYPE: Claotrachelus rupestris Zollinger & Moritzi ex Zollinger
Critoniopsis Critoniopsis Schultz Bipontinus, Jahresber. Pollichia 20-21: 430. 1863. TYPE: Critoniopsis lindenii Schultz Bipontinus
Crystalopollen Crystalopollen Steetz, in Peters, Naturw. Reise Mossambique 6: 363. 1864. TYPE: Non designatus.
Decaneurum Decaneurum de Candolle, Arch. Bot. (Paris) 2: 516. 1833. TYPE: = Gymnanthemum Cassini 1817.
Eremosis Eremosis (de Candolle) Gleason, Bull. New York Bot. Gard. 4: 227. 1906. BASIONYM: Monosis de Candolle, sect. Eremosis de Candolle, Prodr. 5: 77. 1836. TYPE: Eremosis salicifolia (de Candolle) Gleason (Monosis salicifolia de Candolle)
Flustula Flustula Rafinesque, Sylva Tellur. 116. 1838. TYPE: Flustula tomentosa Rafinesque, nom. illegit. (Conyza arborescens Linnaeus)
Gymnanthemum Gymnanthemum Cassini, Bull. Sci. Soc. Philom. Paris 1817: 10. 1817. TYPE: Non designatus.
Hololepis Hololepis de Candolle, Ann. Mus. Natl. Hist. Nat. 16: 155, 189. 1810. TYPE: Hololepis pedunculata (de Candolle ex Persoon) de Candolle (Serratula pedunculata de Candolle ex Persoon)
Isonema Isonema Cassini, Bull. Sci. Soc. Philom. Paris 1817: 152. 1817, non R. Brown 1810. TYPE: Isonema ovata Cassini, nom. illegit. (Conyza chinensis Linnaeus)
Keringa Keringa Rafinesque, Sylva Tellur. 144. 1838. TYPE: Keringa amygdalina (Delile) Rafinesque (Vernonia amygdalina Delile)
Lepidaploa Lepidaploa (Cassini) Cassini, in Cuvier, Dict. Sci. Nat. 57: 341. 1828. BASIONYM: Vernonia Schreber, subg. Lepidaploa Cassini, Bull. Sci. Soc. Philom. Paris 1817: 66. 1817. TYPE: Non designatus.
Linzia Linzia Schultz Bipontinus ex Walpers, Repert. Bot. Syst. 2: 948. 1843. TYPE: Linzia vernonioides Schultz Bipontinus ex Walpers
Lysistemma Lysistemma Steetz, in Peters, Naturw. Reise Mossambique 6: 340. 1864. TYPE: Non designatus.
Monosis Monosis de Candolle, in Wight, Contr. Bot. India 5. 1834. TYPE: Monosis wightiana de Candolle
Plectreca Plectreca Rafinesque, Fl. Tellur. 4: 119. 1838 ("1836"). TYPE: Plectreca corymbosa (Thunberg) Rafinesque (Stahelina corymbosa Thunberg)
Punduana Punduana Steetz, in Peters, Naturw. Reise Mossambique 6: 345. 1864. TYPE: Non designatus.
Strobocalyx Strobocalyx (Blume ex de Candolle) Spach, Hist. Nat. Vég. 10: 39. 1841. BASIONYM: Vernonia Schreber, sect. Strobocalyx Blume ex de Candolle, Prodr. 5: 21. 1836. TYPE: Non designatus.
Tephrothamnus Tephrothamnus Schultz Bipontinus, Jahresber. Pollichia 20-21: 431. 1863. TYPE: Non designatus.
Trianthaea Trianthaea (de Candolle) Spach, Hist. Nat. Vég. 10: 39. 1841. BASIONYM: Vernonia Schreber, sect. Trianthaea de Candolle, Prodr. 5: 23. 1836. TYPE: Non designatus.
Vernonella Vernonella Sonder, Linnaea 23: 62. 1850. TYPE: Vernonella africana Sonder
Webbia Webbia de Candolle, Prodr. 5; 72. Oct 1836, non Spach Jun 1836. TYPE: Non designatus.
Xipholepis Xipholepis Steetz, in Peters, Naturw. Reise Mossambique 6: 344. 1864. TYPE: Non designatus.