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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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Senecio ampullaceus (Texas ragwort)
Carr, Bill

Senecio ampullaceus

Senecio ampullaceus Hook.

Texas Ragwort, Texas Groundsel, Texas Butterweed

Asteraceae (Aster Family)


USDA Symbol: SEAM2

USDA Native Status: L48 (N)

This plant grows 1-2 feet tall. Leaves clasp the stem and are 1-3 inches long, with 1 main vein down the center. The yellow flower heads are on stems growing out of the leaf axils near the top of the plant, with 2-4 blossoms on each stem, 1-1 1/4 inches across. There are 7-9 ray flowers per flower head (248).


From the Image Gallery

19 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Size Notes: Up to about 30 inches tall, often shorter.
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: Mar , Apr




Warning: Considered toxic to livestock.
Deer Resistant: Moderate

From the National Organizations Directory

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

Stengl Biological Research Station - Smithville, TX

Herbarium Specimen(s)

NPSOT 1125 Collected Mar 9, 1995 in Bexar County by Harry Cliffe

1 specimen(s) available in the Digital Herbarium


Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller
Bibref 328 - Wildflowers of Texas (2003) Ajilvsgi, Geyata.
Bibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.

Search More Titles in Bibliography

Web Reference

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

Additional resources

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


Record Modified: 2023-01-13
Research By: TWC Staff

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