Ambrosia acanthicarpa Hooker (Q2719)
Ambrosia acanthicarpa is a taxon with the rank species within the genus Ambrosia
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Ambrosia acanthicarpa Hooker
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Ambrosia acanthicarpa is a taxon with the rank species within the genus Ambrosia
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Statements
taxon/id/Ambrosia acanthicarpa Hooker
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Ambrosia acanthicarpa Hooker
Ambrosia acanthicarpa
Hooker
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York.
accepted
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CA-AB
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Moss, E.H. 1983. Flora of Alberta. 2nd edition, revised by J.G. Packer. University of Toronto Press, Toronto. 687 pp.
CA-MB
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Manitoba Checklist, 2002
CA-SK
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Harms, V.L. 2006. Annotated catalogue of Saskatchewan vascular plants. http://www.biodiversity.sk.ca/Docs/AnnotatedCatalogueSKVascPlants2006.pdf
CA-AB
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CA-MB
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CA-SK
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US-AZ
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US-CA
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US-CO
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US-ID
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US-KS
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US-MN
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US-MO
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US-MT
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US-NE
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US-NV
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US-NM
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US-ND
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US-OK
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US-OR
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US-SD
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US-TX
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US-UT
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US-WA
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US-WY
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10–3000 m
10 meter
3,000 meter
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Leaves opposite (proximal) and alternate;
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petioles 5–15 (–25+) mm;
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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 glanddotted.
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Pistillate heads clustered, proximal to staminates;
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Staminate heads: peduncles 0.5–2 mm;
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involucres shallowly cupshaped (usually each with 1–5+ black nerves), 3–5 (–7) mm diam., sparsely hirsute or glabrous;
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florets 6–12 (–20+).
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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.
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