Difference between revisions of "Xanthisma junceum"
Sida 20: 1406. 2003.
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}} | }} | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Haplopappus junceus | |name=Haplopappus junceus | ||
|authority=Greene | |authority=Greene | ||
| + | |rank=species | ||
| + | |publication_title=Bull. Calif. Acad. Sci. | ||
| + | |publication_place=1: 190. 1885 | ||
}} | }} | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Machaeranthera juncea | |name=Machaeranthera juncea | ||
|authority=(Greene) Shinners | |authority=(Greene) Shinners | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Xanthisma;Xanthisma sect. Sideranthus;Xanthisma junceum | |hierarchy=Asteraceae;Asteraceae tribe Astereae;Xanthisma;Xanthisma sect. Sideranthus;Xanthisma junceum | ||
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|elevation=100–1000 m | |elevation=100–1000 m | ||
|distribution=Calif.;Mexico (Baja California;Sonora). | |distribution=Calif.;Mexico (Baja California;Sonora). | ||
| − | |discussion=<p>Xanthisma junceum is reported from Arizona, but no specimen has been seen; as it is coastal in distribution, the report is likely based on a misidentified specimen.</p> | + | |discussion=<p><i>Xanthisma junceum</i> is reported from Arizona, but no specimen has been seen; as it is coastal in distribution, the report is likely based on a misidentified specimen.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Xanthisma junceum | name=Xanthisma junceum | ||
| − | |||
|authority=(Greene) D. R. Morgan & R. L. Hartman | |authority=(Greene) D. R. Morgan & R. L. Hartman | ||
|rank=species | |rank=species | ||
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|publication year=2003 | |publication year=2003 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_888.xml |
|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Xanthisma | |genus=Xanthisma | ||
Latest revision as of 20:06, 5 November 2020
Subshrubs, 25–100 cm; caudices branched, taproots 2–10+ cm. Stems 3–15+, branched in distal 1/2, slender and wiry, glabrous. Leaves: basal often withering by flowering, 20–35 × 6–12 mm, pinnatifid; cauline evenly spaced, blades oblong to linear, scalelike, 4–6 × 1–2 mm (except proximalmost), markedly reduced distally, margins usually entire, faces glabrous. Peduncles minutely glandular, if stipitate, then minutely so; bracts 5–25, imbricate, grading into phyllaries. Involucres hemispheric (narrowed at bases), 0.5–0.8 × 1–1.2 cm. Phyllaries in 5–6 series, oblong to linear-oblanceolate, 1.5–6.5 mm, apices acute, tipped by white bristle, faces minutely stipitate-glandular. Ray florets 15–25; corollas yellow, tubes 3.5–4 mm, laminae 5–6 × 1.5–2.5 mm. Disc florets 25–40+; corollas 4.8–6.3 mm. Cypselae narrowly obovoid to oblanceoloid, 1.5–2.5 mm, nerves 12–18, moderately tawny hairy; pappi tawny, 3.5–6 mm, a few abaxial bristles to 1/3 of longest. 2n = 8, 16.
Phenology: Flowering summer–fall.
Habitat: Rocky, dry slopes
Elevation: 100–1000 m
Distribution
Calif., Mexico (Baja California, Sonora).
Discussion
Xanthisma junceum is reported from Arizona, but no specimen has been seen; as it is coastal in distribution, the report is likely based on a misidentified specimen.
Selected References
None.