| Calycoseris wrightii | |
|---|---|
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Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Calycoseris |
| Species: | C. wrightii |
| Binomial name | |
| Calycoseris wrightii A.Gray | |
Calycoseris wrightii, commonly known as white tackstem, is an annual spring wildflower, one of two species in the genus Calycoseris; the other species is C. parryi, the yellow tackstem. They are part of the family Asteraceae.
White tackstem is found in the southwestern United States and northwestern Mexico in California, Nevada, southwestern Utah (Washington County), New Mexico, Arizona, northern Baja California, Sonora, western Texas (El Paso County).United States Department of Agriculture .
Calycoseris wrightii is a white daisy-like flower up to more than 2.0 inches (5 cm) across; when it grows supported amongst other plants it can be more than 45 cm (18 inches) tall. It has one easy distinguishing feature: the closed outside of the ray florets contain two linear purple stripes (fine reddish veins abaxially – 2 to 3 cm (1 in)). It is a spring wildflower found in the desert regions and is plentiful after winter rains. It grows up to 4000 ft (1,220 m) elevation.
References
- Biota of North America Program 2014 county distribution map
- Calflora taxon report, University of California, Calycoseris wrightii A. Gray, white tackstem
- Cycloseris wrightii 'Synopsis' at Flora of North America, White tack-stem, Calycoseris wrightii
External links
- USDA Plants Profile for Calycoseris wrightii (white tackstem)
- Calflora Database: Calycoseris wrightii (White tackstem)
- Jepson Manual eFlora (TJM2) treatment of Calycoseris wrightii
- Calycoseris wrightii in the CalPhotos photo database, University of California, Berkeley
- Cycloseris wrightii at Lady Bird Johnson Wildflower Center-NPIN: Calycoseris wrightii
- "Death Valley National Park: White Blossoms". National Park Service. Archived from the original on 2008-02-24. — Close-up of flower-head (High Res photo)
| Taxon identifiers | |
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| Calycoseris wrightii |
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 | This Cichorieae article is a stub. You can help Misplaced Pages by expanding it. |
- Calycoseris
- Flora of Northwestern Mexico
- Flora of the California desert regions
- Flora of the Southwestern United States
- Flora of the South-Central United States
- Flora of the Chihuahuan Desert
- Flora of the Sonoran Deserts
- Natural history of the Colorado Desert
- Natural history of the Mojave Desert
- North American desert flora
- Plants described in 1853
- Taxa named by Asa Gray
- Cichorieae stubs