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Conoclinium betonicifolium (Betonyleaf thoroughwort)
Page, Lee

Conoclinium betonicifolium

Conoclinium betonicifolium (Mill.) King & H. Rob.

Betonyleaf Thoroughwort, Betony-leaf Mistflower

Asteraceae (Aster Family)

Synonym(s): Eupatorium betonicifolium

USDA Symbol: COBE4

USDA Native Status: L48 (N)

This is a somewhat woody, weak, usually decumbent plant rooting at the nodes in sand or sandy clay and found throughout the Texas coast. The flowering stems turn up at the ends and the blades are fleshy with toothed margins. All the flowers are disc-type with bluish petals.

Like the other blue mistflowers, this one attracts a host of butterfly species. It thrives and will flower most abundantly in full sun, but will still produce a show in part shade.


From the Image Gallery

40 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Root Type: Fibrous
Leaf Arrangement: Opposite
Leaf Margin: Crenate , Dentate
Leaf Apex: Obtuse
Leaf Base: Cordate , Truncate
Size Notes: Stems erect to decumbent, up to about 6 feet long.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Blue
Bloom Time: Mar , Apr , May , Jun , Jul , Aug
Bloom Notes: There are no ray flowers.


Native Habitat: Dunes, roadsides, edges of woods.

Growing Conditions

Water Use: Medium
Light Requirement: Sun , Part Shade
Soil Moisture: Moist
Drought Tolerance: Medium


Conspicuous Flowers: yes
Attracts: Butterflies
Nectar Source: yes

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Naval Air Station Kingsville - Kingsville, TX
National Butterfly Center - Mission, TX

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Conoclinium betonicifolium in USDA Plants
FNA: Find Conoclinium betonicifolium in the Flora of North America (if available)
Google: Search Google for Conoclinium betonicifolium


Record Modified: 2022-12-23
Research By: DEW

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