Xylorhiza glabriuscula
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
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
Colo., Mont., S.Dak., Utah, Wyo.
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Xylorhiza glabriuscula"
introrse +
connate +
distinct +
herbaceous +
scarious +
hirsute +
papillate +
continuous +
not clasping +
attenuate +
1-nerved +
linear;lanceolate or oblanceolate oblong or narrowly elliptic +
ribbed +
stigmatic +
barbellate +
tawny +
persistent +
30;45 +
unequal +
absent +
Smooth woody-aster +
white +
absent +
monomorphic +
4-ribbed +
dimorphic +
staminate +
straight +
eglandular +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
Open sites, selenious, alkaline clays, dominated by sagebrush, saltbush, greasewood, and grasses +
singly +
indeterminate +
Present +
surrounding +
campanulate;hemispheric +
oblanceolate +
2.5mm;8mm +
alternate +
cauline +
spreading +
triangular +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
tough +
thick +
absent +
connate +
1-nerved +
persistent +
distinct +
falling +
lanceolate +
unequal +
Trans. Amer. Philos. Soc., n. s. +
1840 +
pistillate +
absent +
fertile +
epaleate +
pitted +
concave;usually flat;conic +
fibrous +
exalbuminous +
modifed +
2;3 +
alternate +
erect +
lanceolate +
2-branched +
glabrous +
Xylorhiza glabriuscula +
Xylorhiza +
species +
shorter +
shorter to longer +
perennial +
subshrub +