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Machaeranthera pinnatifida var. pinnatifida (Lacy tansyaster)
Flaigg, Norman G.

Machaeranthera pinnatifida var. pinnatifida

Machaeranthera pinnatifida (Hook.) Shinners var. pinnatifida

Lacy Tansyaster, Yellow Spiny Daisy

Asteraceae (Aster Family)

Synonym(s): Amellus spinulosus, Aster pinnatifidus, Dieteria spinulosa, Diplopappus pinnatifidus, Eriocarpum australe, Eriocarpum spinulosum, Eriocarpum wootonii, Haplopappus coulteri, Haplopappus spinulosus, Haplopappus spinulosus ssp. australis, Haplopappus spinulosus ssp. cotulus, Haplopappus spinulosus ssp. laevis, Haplopappus spinulosus var. canescens, Haplopappus spinulosus var. glaber, Haplopappus spinulosus var. turbinellus, Haplopappus texensis, Machaeranthera australis, Machaeranthera laevis, Machaeranthera pinnata, Machaeranthera texensis, Sideranthus australis, Sideranthus cotula, Sideranthus laevis, Sideranthus machaerantherus, Sideranthus puberulus, Sideranthus spinulosus, Sideranthus turbinellus, Sideranthus wootonii, Starkea pinnata


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

This taxon appears as Machaeranthera pinnatifida ssp. pinnatifida var. pinnatifida on the USDA PLANTS Database website.


From the Image Gallery

8 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Subshrub
Leaf Arrangement: Alternate
Leaf Complexity: Pinnate , Bipinnate
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: Orange , Yellow
Bloom Time: May , Jun , Jul , Aug , Sep , Oct


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

Web Reference

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

Additional resources

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


Record Modified: 2023-07-24
Research By: TWC Staff

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