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Xylorhiza glabriuscula
Nutt.
Family:
Asteraceae
Smooth Woody-Aster
Walter Fertig
FNA
Resources
Guy L. Nesom in Flora of North America (vol. 20)
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.
2
n
= 12.
Flowering May-Jun(-Jul). Open sites, selenious, alkaline clays, dominated by sagebrush, saltbush, greasewood, and grasses; 1100-2300 m; Colo., Mont., S.Dak., Utah, Wyo.
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Development supported by U.S. National Science Foundation Grants (
DBI 9983132
,
BRC 0237418
,
DBI 0743827
,
DBI 0847966
)
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