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Thelesperma flavodiscum (East texas greenthread)
Flaigg, Norman G.

Thelesperma flavodiscum

Thelesperma flavodiscum (Shinners) B.L. Turner

East Texas Greenthread, Greenthread

Asteraceae (Aster Family)



USDA Native Status: L48 (N)

The green thread is 28-36 inches tall, with 1-3 stems growing from the base, usually branching in the upper portion. The leaves are opposite, mostly near the base of the stem, once or twice divided into thread like segments, about 3 inches long. There are many yellow flower heads with 8 ray flowers about 5/8 inch long, each with 4 teeth at the tip. The disc flowers are also yellow (248).


From the Image Gallery

3 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Size Notes: Up to about 4 feet 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: Red , Yellow , Brown
Bloom Time: May , Jun




Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller

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Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

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


Record Modified: 2023-01-30
Research By: TWC Staff

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