Difference between revisions of "Ambrosia acanthicarpa"
Fl. Bor.-Amer. 1: 309. 1833.
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|place=1: 309. 1833 | |place=1: 309. 1833 | ||
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| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
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|basionyms= | |basionyms= | ||
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|name=Franseria acanthicarpa | |name=Franseria acanthicarpa | ||
|authority=(Hooker) Coville | |authority=(Hooker) Coville | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ambrosiinae;Ambrosia;Ambrosia acanthicarpa | |hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Ambrosiinae;Ambrosia;Ambrosia acanthicarpa | ||
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name=Ambrosia acanthicarpa | name=Ambrosia acanthicarpa | ||
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|authority=Hooker | |authority=Hooker | ||
|rank=species | |rank=species | ||
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|publication title=Fl. Bor.-Amer. | |publication title=Fl. Bor.-Amer. | ||
|publication year=1833 | |publication year=1833 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_15.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 20:10, 5 November 2020
Annuals, 10–80+ cm. Stems erect. Leaves opposite (proximal) and alternate; petioles 5–15(–25+) mm; blades ± deltate, 15–40(–85+) × 12–35(–80+) mm, 1–2-pinnately lobed, bases cuneate, ultimate margins entire or toothed, abaxial faces hispid and strigillose to sericeous, adaxial faces strigillose and gland-dotted. Pistillate heads clustered, proximal to staminates; florets 1. Staminate heads: peduncles 0.5–2 mm; involucres shallowly cup-shaped (usually each with 1–5+ black nerves), 3–5(–7) mm diam., sparsely hirsute or glabrous; florets 6–12(–20+). Burs: bodies fusiform to obpyramidal, 3–5 mm, ± hirsutulous or glabrate, spines 8–18+, scattered, stoutly subulate (sometimes basally flattened or navicular), 2–4(–5) mm, tips straight or uncinate. 2n = 36.
Phenology: Flowering (Apr–)Jul–Nov.
Habitat: Canyons, sandy flats, dunes
Elevation: 10–3000 m
Distribution
Alta., Man., Sask., Ariz., Calif., Colo., Idaho, Kans., Minn., Mo., Mont., Nebr., Nev., N.Mex., N.Dak., Okla., Oreg., S.Dak., Tex., Utah, Wash., Wyo.
Discussion
Selected References
None.