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Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Packera tampicana (Yellowtop)
Lynn, Janice

Packera tampicana

Packera tampicana (DC.) C. Jeffrey

Yellowtop, Great Plains Ragwort, Butterweed

Asteraceae (Aster Family)

Synonym(s): Senecio greggii, Senecio imparipinnatus, Senecio tampicanus

USDA Symbol: PATA5

USDA Native Status: L48 (N)

This plant grows 8-20 inches high, with delicate, alternate leaves attached directly to the stem. They are pinnately compound, each leaflet unevenly and roundly lobed. The heads are 3/4 inch across with 11-13 ray flowers each. The plant is branched near the top, with all branches forming a more or less flat top with many flower heads on each short stem.


From the Image Gallery

17 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Size Notes: Up to about 20 inches tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Yellow
Bloom Time: Feb , Mar , Apr , May , Jun


USA: KS , LA , MS , NM , OK , TX

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:

Lady Bird Johnson Wildflower Center - Austin, 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 Packera tampicana in USDA Plants
FNA: Find Packera tampicana in the Flora of North America (if available)
Google: Search Google for Packera tampicana


Record Modified: 2022-12-30
Research By: TWC Staff

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