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Vernonia baldwinii Torr.
Life   Plantae   Dicotyledoneae   Asteraceae   Vernonia

Click on map for details about points.


Associates · map
FamilyScientific name @ source (records)
Apidae  Bombus pensylvanicus @ AMNH_BEE (1)
Coleosporiaceae  Coleosporium carneum @ BPI (11)

Coleosporium vernoniae @ BPI (33)
Erysiphaceae  Erysiphe cichoracearum @ BPI (4)
Megachilidae  Megachile brevis @ AMNH_BEE (1)
Mycosphaerellaceae  Cercospora oculata @ BPI (7)

Cercospora vernoniae @ BPI (9)

Mycosphaerella decidua @ BPI (1)
Peronosporaceae  Plasmopara halstedii @ BPI (1)
Pleosporaceae  Macrosporium vernoniae @ BPI (1)
Pucciniaceae  Puccinia vernoniae @ 109318A (1); 109318B (1); BPI (49)
_  07-27-2012Image 273 @ I_SUR (1)

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Following modified from MissouriPlants.com
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Vernonia baldwinii  Torr.


Vernonia baldwinii plant

Family - Asteraceae

Stems - To +1.5m tall, herbaceous, from a taproot, typically single from the base, simple below, branched near apex, erect, stout, green but becoming purple in full sun, velutinous, (the hairs whitish to ferruginous or purplish and multicellular).

Vernonia baldwinii stem

Leaves - Alternate, short-petiolate to subsessile. Petioles to +/-7mm long, velutinous. Blades variable, from lanceolate to ovate or oblong, serrate, acute to acuminate, slightly scabrous above, velutinous below (and often bluish-green in color), with many small teardrop-shaped granules below, to 15cm long, 8-9cm broad. The serrations of the margins often with a minute whitish apex. Veins of the leaf blade are impressed adaxially and expressed abaxially.

Vernonia baldwinii leaves Fresh leaves.

Vernonia baldwinii leaf Abaxial leaf surface close-up.

Inflorescence - Dense cymose arrangement of flower heads. Peduncles velutinous, to 2cm long.

Involucre - 7-8mm long (tall), 5-6mm in diameter. Phyllaries imbricate, green with purple margins and midrib, acuminate, with arachnoid pubescence externally, glabrous internally, to 6mm long, 2-3mm broad. The tips of the phyllaries typically spreading but sometimes appressed. Margins often fimbriate-ciliolate.

Vernonia baldwinii involucre Involucre.

Ray flowers - Absent.

Disk flowers - Corolla deep pink, 5-lobed, glabrous. Tube to 1.2cm long. Lobes to 3mm long, recurved, glabrous, linear. Stamens 5, adnate in upper 1/3 of corolla tube. Filaments white, glabrous. Anthers yellowish, connate around style, partially to fully exserted, to 3mm long. Style pinkish-white, well exserted beyond corolla and anthers, bifurcate, (the tips recurved). Achenes white in flower, to 2mm long, slightly compressed, tuberculate, pubescent, 4-sided, 8-ribbed. Pappus of multiple capillary bristles to 7mm long and short scales to .5mm long. Bristles brown, barbellate. Receptacle flat, naked.

Vernonia baldwinii flowers

Flowering - May - September.

Habitat - Fields, prairies, rocky woods, glades, meadows, waste ground, pastures, thickets, roadsides, railroads.

Origin - Native to U.S.

Other info. - This striking species is found throughout Missouri. The plant is common in the habitats listed above. This and other species of Vernonia can be fairly variable and sometimes difficult to ID. Many of the plants in this genus form hybrids and thus make ID even more of a challenge. V. baldwinii grows well from seed and should be used more in cultivation. Flying insects are very fond of the flowers.
Steyermark breaks this species down into different varieties and forms. I won't go into those here as many of these integrate and are probably not valid.

Photographs taken at the Current River Conservation Area, Reynolds County, MO., 7-15-01.

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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=VEBA ---> https://plants.usda.gov/java/profile?symbol=VEBA
https://plants.usda.gov/java/profile?symbol=VEBA ---> http://plants.usda.gov/core/profile?symbol=VEBA
http://plants.usda.gov/core/profile?symbol=VEBA ---> https://plants.usda.gov/core/profile?symbol=VEBA
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Vernonia baldwinii Torr.
Baldwin's ironweed

Image of Vernonia baldwinii

General Information
Symbol: VEBA
Group: Dicot
Family: Asteraceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : L48   N
Data Source and Documentation
About our new maps
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Vernonia thumbnails at the Plants Gallery

Clarence A. Rechenthin. Provided by USDA NRCS East Texas PMC (ETPMC) . Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 3: 353. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .




Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Asteridae
Order Asterales
Family Asteraceae ⁄ Compositae – Aster family
Genus Vernonia Schreb. – ironweed
Species Vernonia baldwinii Torr. – Baldwin's ironweed

Subordinate Taxa

The Plants Database includes the following 2 subspecies of Vernonia baldwinii . Click below on a thumbnail map or name for subspecies profiles. Plant is native (blue) Native Plant is introduced Introduced Plant is introduced Native and Introduced Related taxa legend Distribution of <i>
Vernonia baldwinii</i>
Torr. ssp. <i>
baldwinii </i>
Vernonia baldwinii ssp. baldwinii
Baldwin's ironweed Distribution of <i>
Vernonia baldwinii</i>
Torr. ssp. <i>
(Small) Faust
Vernonia baldwinii ssp. interior
interior ironweed

Legal Status

U.S. Weed Information
Vernonia baldwinii Baldwin ironweed western ironweed This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S.
NE&GP Stubbendieck, J., G.Y. Friisoe,and M.R. Bolick. 1994. Weeds of Nebraska and the Great Plains . Nebraska Department of Agriculture, Bureau of Plant Industry. Lincoln, Nebraska.
SWSS Southern Weed Science Society. 1998. Weeds of the United States and Canada. CD-ROM . Southern Weed Science Society. Champaign, Illinois.

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain UPL
Eastern Mountains and Piedmont UPL
Great Plains FACU
Midwest UPL
Northcentral & Northeast UPL
Western Mountains, Valleys, and Coast FACU

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (VEBA)
Integrated Taxonomic Information System (VEBA)
Kemper Center for Home Gardening (VEBA)
Lady Bird Johnson Wildflower Center Native Plant Information Network (VEBA)
Related Websites
IL-Weeds of the North Central States (VEBA)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

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Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Vernonia+baldwinii&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Vernonia+baldwinii&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 2
Query: SELECT * FROM img WHERE ready=1 and taxon like "Vernonia baldwinii%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Vernonia baldwinii
Vernonia baldwinii
Baldwin Ironweed
ID: 0000 0000 0214 0027 [detail]
© 2014 Richard Spellenberg

Vernonia baldwinii
Vernonia baldwinii
Baldwin Ironweed
ID: 0000 0000 0214 0028 [detail]
© 2014 Richard Spellenberg

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   

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