Difference between revisions of "Xylorhiza linearifolia"

(T. J. Watson) G. L. Nesom

Sida 20: 145. 2002.

Common names: Moab woody-aster
Basionym: Xylorhiza glabriuscula var. linearifolia T. J. Watson Brittonia 29: 215. 1977
Synonyms: Machaeranthera linearifolia (T. J. Watson) Cronquist
Treatment appears in FNA Volume 20. Treatment on page 408. Mentioned on page 406.
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|name=Xylorhiza glabriuscula var. linearifolia
 
|name=Xylorhiza glabriuscula var. linearifolia
 
|authority=T. J. Watson
 
|authority=T. J. Watson
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|publication_title=Brittonia
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|publication_place=29: 215. 1977
 
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V20_932.xml
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|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_932.xml
 
|tribe=Asteraceae tribe Astereae
 
|tribe=Asteraceae tribe Astereae
 
|genus=Xylorhiza
 
|genus=Xylorhiza

Revision as of 18:45, 24 September 2019

Subshrubs, 15–35 cm. Stems branched mostly in proximal 3/4, puberulent to coarsely stipitate-glandular. Leaves: blades linear-oblong to linear-lanceolate, (2–)2.5–5 mm wide, bases truncate or rounded-auriculate, margins flat, usually entire, rarely few-toothed, faces puberulent to coarsely stipitate-glandular. Peduncles 3–11 cm. Involucres 10–17 × 15–30 mm. Ray florets 13–21; corollas light blue to white. Style-branch appendages slightly shorter to ± equaling stigmatic lines. 2n = 12, 24.


Phenology: Flowering Apr–May(–Jun).
Habitat: Deep canyons, sands, and clays
Elevation: 1300–2000 m

Discussion

Xylorhiza linearifolia is known from Garfield, Grand, San Juan, and Wayne counties. Plants with few-toothed leaf margins may be indicative of hybridization with X. tortifolia, which is sympatric with X. linearifolia in the southern part of its range.

Selected References

None.

Lower Taxa

None.