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Senecio ampullaceus (Ragwort)
Marcus, Joseph A.

Senecio ampullaceus

Senecio ampullaceus Hook.

Ragwort, Texas Groundsel, Texas ragwort

Asteraceae (Aster Family)


USDA Symbol: seam2

USDA Native Status: L48 (N)

This plant grows 12 feet tall. Leaves clasp the stem and are 13 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 24 blossoms on each stem, 11 1/4 inches across. There are 79 ray flowers per flower head (248).


Plant Characteristics

Duration: Annual
Habit: Herb
Size Class: 1-3 ft.

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 either on display or available from the following:

Stengl Biological Research Station - Smithville, TX

Herbarium Specimen(s)

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


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

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 Last Modified: 2007-01-01
Research By: TWC Staff

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