Xanthisma grindelioides var. grindelioides (Nutt.) D.R. Morgan & R.L. Hartm.   (redirected from: Machaeranthera grindelioides var. grindelioides (Nutt.) Shinners)
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Family: Asteraceae
rayless tansyaster
[Machaeranthera grindelioides var. grindelioides (Nutt.) Shinners,  more, Sideranthus grindelioides (Nutt.) Britt.]
Xanthisma grindelioides var. grindelioides image
Photo ©Al Schneider, swcoloradowildflowers.com  
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Ronald L. Hartman in Flora of North America (vol. 20)
Plants tufted, 10-35 cm. Leaves evenly distributed along stems, margins usually ciliate, sometimes spinulose-dentate, bristles usually 0.5-1.5 mm. Heads 1 or often 2-5. Peduncles 0.5-2 cm, often bracteate to proximal to heads. 2n = 8. Flowering spring-summer. Gypseous or sandy plains or badlands; 1000-2400 m; Alta., Sask.; Ariz., Colo., Idaho, Mont., Nebr., Nev., N.Mex., N.Dak., S.Dak., Utah, Wyo. Variety grindeloides is known to hybridize with Xanthisma coloradoense in southern Wyoming.

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Xanthisma grindelioides var. grindelioides
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Xanthisma grindelioides var. grindelioides image
Photo ©Al Schneider, swcoloradowildflowers.com  
Xanthisma grindelioides var. grindelioides image
Photo ©Al Schneider, swcoloradowildflowers.com  
Xanthisma grindelioides var. grindelioides image
Photo ©Al Schneider, swcoloradowildflowers.com  
Xanthisma grindelioides var. grindelioides image
Photo ©Al Schneider, swcoloradowildflowers.com  
Xanthisma grindelioides var. grindelioides image
Photo ©Al Schneider, swcoloradowildflowers.com  
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
Xanthisma grindelioides var. grindelioides image
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