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Blue Mistflower, Wild Ageratum, Mistflower - Conoclinium coelestinum


Family: Asteraceae Aster family Genus Common Name: Mistflower Native Status: Native
Conoclinium coelestinum - Blue Mistflower, Wild Ageratum, Mistflower. Branching Aster 1' to 3' tall with opposite, almost triangle-shaped toothed leaves. Blue disk flowers but no ray flowers.

Synonym Eupatorium coelestinum.

Found in:
AL, AR, DC, DE, FL, GA, IL, IN, KS, KY, LA, MD, MI, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, TN, TX, VA, WV

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Distribution of Conoclinium coelestinum in the United States and Canada:
USDA Plants Distribution Map temporarily unavailable.
Blue=Native; Grey=Introduced

Map from USDA Plants Database:
USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 25 Oct 2014). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

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Site: Walker County, Ga Date: 2009-August-31Photographer: Gerald C Williamson
Each flowerhead of Blue Mistflower consist of many 5-petaled disk flowers whose long stamen cause the fuzzy appearance of this flower. There are no ray flowers on this member of the aster family.
Conoclinium coelestinum

Site: Walker County, Ga Date: 2009-August-31Photographer: Gerald C Williamson
Somewhat triangular-shaped leaf of Blue Mistflower is opposite, toothed. As with most plants with toothed leaves, the depth of the "teeth" can be quite variable. Leaves are on short petioles.
Click on the photo for a larger image
Conoclinium coelestinum

Site: Walker County, Ga Date: 2009-August-31Photographer: Gerald C Williamson
Blue Mistflower, Conoclinium coelestinum, is typically 1' to 3' high, and may have multiple branches, each terminating at an inflorescence.
Click on the photo for a larger image
Conoclinium coelestinum

Site: Walker County, GA Date: 2010-October-24Photographer: Gerald C Williamson
Nikon D60
The Blue Mistflower blossoms seem to be a deeper blue this year. 2009 was a "normal" rainfall year, while 2010 had a wet spring but a VERY dry summer. Possibly that was a factor in the color.
Click on the photo for a larger image
Conoclinium coelestinum

Site: Walker County, GA Date: 2010-October-24Photographer: Gerald C Williamson
Nikon D60
Blue Mistflower is a late summer/early fall flower. By late October in North Georgia the flowers are giving way to seeds.
Click on the photo for a larger image
Conoclinium coelestinum

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All content except USDA Plants Database map Copyright Gerald C. Williamson 2014
Photographs Copyrighted by the named photographer