Conoclinium greggii (A. Gray) Small
Gregg's Mistflower , Palmleaf Thoroughwort, Palm-leaf Mistflower, Palm-leaf Thoroughwort, Purple Palmleaf Mistflower, Purple Palmleaf Eupatorium
Asteraceae (Aster Family)
Synonym(s): Conoclinium dissectum, Eupatorium greggii
USDA Symbol: COGR10
Palm-leaf mistflower is a perennial up to 2 ft. tall with palmate leaves deeply divided into three lobes which are again pinnately dissected. Small, purplish-blue flowers cluster together to form puffy, 2 in., cushion-like flower heads.
The species name “greggii” was named for Josiah Gregg, (1806-1850). He was born in Overton County, Tennessee. In the summer of 1841 and again in the winter of 1841-42 he traveled through Texas, up the Red River valley, and later from Galveston to Austin and by way of Nacogdoches to Arkansas. He took note of Texas geology, trees, prevalent attitudes, and politics. At the same time, Gregg began compiling his travel notes into a readable manuscript. His “Commerce of the Prairies”, which came out in two volumes in 1844, was an immediate success. In 1848 he joined a botanical expedition to western Mexico and California, during which he corresponded with and sent specimens to the eminent botanist George Engelman in St. Louis. Subsequently, the American Botanical Society added the Latin name “greggii” in his honor to twenty-three species of plants. Gregg died on February 25, 1850, as a result of a fall from his horse.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Size Notes: Up to about 2 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom InformationBloom Color: Blue , Purple
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov
DistributionUSA: AZ , NM , TX
Native Distribution: W. TX to s.e. AZ south to Durango and Zacatecas in northern Mexico
Native Habitat: Frequent along stream beds and overflow areas in the Trans-Pecos, east to Edwards Plateau and Rio Grande Plains. Sand, loam, clay or limestone. Seasonally flooded stream beds; plains; overflow areas
Growing ConditionsWater Use: Medium
Light Requirement: Sun , Part Shade
Soil Moisture: Dry
Soil Description: Gravelly, calcareous soils.
Conditions Comments: Gregg's Mistflower can be a good ground cover and spreads easily by roots. Often attracts very impressive numbers of Queen butterflies in the Fall.
BenefitUse Wildlife: This plant provides deer browse. Butterflies love the interesting divided flowers.
Conspicuous Flowers: yes
Larval Host: Rawson's Metalmark
Nectar Source: yes
PropagationPropagation Material: Seeds
Commercially Avail: yes
National Wetland Indicator Status
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Naval Air Station Kingsville - Kingsville, TX
Lady Bird Johnson Wildflower Center - Austin, TX
NPSOT - Native Plant Society of Texas - Fredericksburg, TX
NPSOT - Fredericksburg Chapter - Fredericksburg, TX
NPSOT - Austin Chapter - Austin, TX
National Butterfly Center - Mission, TX
NPSOT - Williamson County Chapter - Georgetown, TX
BibliographyBibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
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Additional resourcesUSDA: Find Conoclinium greggii in USDA Plants
FNA: Find Conoclinium greggii in the Flora of North America (if available)
Google: Search Google for Conoclinium greggii
MetadataRecord Modified: 2022-07-08
Research By: TWC Staff, GDB