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Machaeranthera pinnatifida var. chihuahuana
Machaeranthera pinnatifida (Hook.) Shinners var. chihuahuana B.L. Turner & R.L. Hartm.
Chihuahua Tansyaster, Cutleaf Ironplant
Asteraceae (Aster Family)
Synonym(s): Haplopappus spinulosus var. chihuahuanus
USDA Symbol: MAPIC
USDA Native Status: L48 (N)
This taxon appears as Machaeranthera pinnatifida ssp. pinnatifida var. chihuahuana on the USDA PLANTS Database website.
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Plant Characteristics
Duration: PerennialHabit: Herb , Subshrub
Breeding System: Flowers Bisexual
Inflorescence: Head
Size Notes: Up to about 20 inches tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.
Bloom Information
Bloom Color: YellowBloom Time: May , Jun , Jul , Aug , Sep
Bloom Notes: Flowers showy. Ray and disc flowers yellow.
Distribution
USA: AZ , NM , TXNative Distribution: Texas, New Mexico, Arizona and the Mexican states of Chihuahua, Coahuila, Durango and Sonora. (Webref 3).
Native Habitat: Clayey to rocky washes, prairies, plains, roadsides; 1000–1800 m. (Webref 3).
Bibliography
Bibref 293 - Manual of the Vascular Plants of Texas (1979) Correll, D. S. & M. C. JohnstonSearch More Titles in Bibliography
Web Reference
Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.Additional resources
USDA: Find Machaeranthera pinnatifida var. chihuahuana in USDA PlantsFNA: Find Machaeranthera pinnatifida var. chihuahuana in the Flora of North America (if available)
Google: Search Google for Machaeranthera pinnatifida var. chihuahuana
Metadata
Record Modified: 2023-07-24Research By: Joseph A. Marcus