Xylorhiza glabriuscula

Nuttall

Trans. Amer. Philos. Soc., n. s. 7: 297. 1840.

Common names: Smooth woody-aster
IllustratedEndemic
Synonyms: Aster parryi A. Gray Machaeranthera glabriuscula (Nuttall) Cronquist & D. D. Keck Machaeranthera glabriuscula var. villosa (Nuttall) Cronquist & D. D. Keck Xylorhiza glabriuscula var. villosa (Nuttall) A. Nelson Xylorhiza villosa
Treatment appears in FNA Volume 20. Treatment on page 407. Mentioned on page 406.

Subshrubs, 10–25 cm. Stems branched mostly in proximal 3/4 (leafy 2/3+ their lengths), villoso-puberulent or glabrous, eglandular. Leaf blades oblanceolate, 2.5–8 mm wide, bases attenuate, not clasping, margins flat, entire, faces villoso-puberulent or glabrous, eglandular. Peduncles 2–6 cm. Involucres 7–14 × 12–25 mm. Ray florets 12–25; corollas white. Style-branch appendages equal or shorter than stigmatic lines. 2n = 12.


Phenology: Flowering May–Jun(–Jul).
Habitat: Open sites, selenious, alkaline clays, dominated by sagebrush, saltbush, greasewood, and grasses
Elevation: 1100–2300 m

Distribution

V20-930-distribution-map.gif

Colo., Mont., S.Dak., Utah, Wyo.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Xylorhiza glabriuscula"
Guy L. Nesom +
Nuttall +
Smooth woody-aster +
Colo. +, Mont. +, S.Dak. +, Utah +  and Wyo. +
1100–2300 m +
Open sites, selenious, alkaline clays, dominated by sagebrush, saltbush, greasewood, and grasses +
Flowering May–Jun(–Jul). +
Trans. Amer. Philos. Soc., n. s. +
Illustrated +  and Endemic +
Aster parryi +, Machaeranthera glabriuscula +, Machaeranthera glabriuscula var. villosa +, Xylorhiza glabriuscula var. villosa +  and Xylorhiza villosa +
Xylorhiza glabriuscula +
Xylorhiza +
species +