Difference between revisions of "Ambrosia eriocentra"
J. Arnold Arbor. 45: 423. 1964.
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|place=45: 423. 1964 | |place=45: 423. 1964 | ||
|year=1964 | |year=1964 | ||
| + | }} | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=F | ||
| + | |label=Illustrated | ||
| + | }}{{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
}} | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Franseria eriocentra | |name=Franseria eriocentra | ||
|authority=A. Gray | |authority=A. Gray | ||
| + | |rank=species | ||
|publication_title=Proc. Amer. Acad. Arts | |publication_title=Proc. Amer. Acad. Arts | ||
|publication_place=7: 355. 1868 | |publication_place=7: 355. 1868 | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Ambrosia eriocentra | name=Ambrosia eriocentra | ||
| − | |||
|authority=(A. Gray) W. W. Payne | |authority=(A. Gray) W. W. Payne | ||
|rank=species | |rank=species | ||
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|publication title=J. Arnold Arbor. | |publication title=J. Arnold Arbor. | ||
|publication year=1964 | |publication year=1964 | ||
| − | |special status= | + | |special status=Illustrated;Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_9.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Ambrosiinae | ||
Latest revision as of 20:15, 5 November 2020
Shrubs, 30–80(–120+) cm. Stems erect. Leaves mostly alternate; petioles 0–2 mm; blades (± white abaxially) elliptic, lance-linear, or rhombic, 10–40(–60) × 5–15(–40) mm, bases ± cuneate, margins irregularly toothed to ± laciniate, abaxial faces densely strigillose, adaxial faces tomentulose and pilosulous. Pistillate heads clustered, proximal to staminates; florets 1. Staminate heads: peduncles 0–0.5 mm; involucres saucer-shaped to shallowly cup-shaped, 4–8+ mm diam., tomentulose and/or pilose; florets 12–25+. Burs: bodies obconic to fusiform, 3–5+ mm, densely villous and stipitate-glandular, spines 12–20+, scattered or mostly distal, ± subulate, 3–4 mm, tips straight. 2n = 36.
Phenology: Flowering Apr–May(–Jul).
Habitat: Sandy and gravelly washes
Elevation: 700–1700 m
Distribution
Ariz., Calif., Nev., Utah.
Discussion
Selected References
None.