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Plant Database

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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Machaeranthera pinnatifida ssp. pinnatifida (Lacy tansyaster)
Bransford, W.D. and Dolphia

Machaeranthera pinnatifida ssp. pinnatifida

Machaeranthera pinnatifida (Hook.) Shinners ssp. pinnatifida

Lacy Tansyaster, Yellow Spiny Daisy

Asteraceae (Aster Family)



USDA Native Status: L48 (N), CAN (N)


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Plant Characteristics

Duration: Perennial
Habit: Herb
Size Notes: Up to about 3 feet 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: Jan , Feb , Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec


USA: AR , AZ , CO , IA , ID , KS , MN , MT , ND , NE , NM , OK , SD , TX , UT , WY
Canada: AB , MB , SK


Bibref 328 - Wildflowers of Texas (2003) Ajilvsgi, Geyata.

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.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Machaeranthera pinnatifida ssp. pinnatifida in USDA Plants
FNA: Find Machaeranthera pinnatifida ssp. pinnatifida in the Flora of North America (if available)
Google: Search Google for Machaeranthera pinnatifida ssp. pinnatifida


Record Modified: 2023-01-06
Research By: TWC Staff

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