Difference between revisions of "Helianthus pauciflorus Nuttall (Q2765)"
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Latest revision as of 12:52, 24 June 2022
Helianthus pauciflorus is a taxon with the rank species within the genus Helianthus
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Helianthus pauciflorus Nuttall
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Helianthus pauciflorus is a taxon with the rank species within the genus Helianthus
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taxon/id/Helianthus pauciflorus Nuttall
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Helianthus pauciflorus Nuttall
Helianthus pauciflorus
Nuttall
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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CA-BC
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CA-MB
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CA-NB
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CA-NS
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CA-ON
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CA-PE
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CA-QC
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CA-SK
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US-AR
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US-CO
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US-CT
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US-GA
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US-IL
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US-IN
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US-IA
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US-KS
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US-KY
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US-ME
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US-MA
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US-MI
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US-MN
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US-MO
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US-MT
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US-ND
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US-NH
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US-NJ
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US-NM
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US-NE
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US-OK
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US-PA
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US-RI
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US-SD
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US-TX
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US-VA
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US-VT
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US-WI
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US-WY
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Stems erect, scabro-hispid.
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Leaves mostly basal;
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opposite, or opposite (proximal) and alternate;
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blades lanceovate to oblong-lanceolate, or rhombic-ovate to lance-linear, 5–27 × 2–6 cm, bases cuneate, margins serrate to subentire, abaxial faces sparsely hispid, sparsely, if at all, glanddotted (cauline smaller).
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Peduncles 3–12 cm.
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Involucres hemispheric, 15–23 mm diam.
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Phyllaries 25–35, ovate, 6–10 × 3–5 mm, (margins ciliate) apices acute, abaxial faces glabrate to hispid.
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Paleae 9–10 mm, shallowly 3-toothed to subentire (apices ciliate, hairy).
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Ray-florets 10–20;
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laminae 20–35 mm (abaxial faces usually glanddotted).
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Disc-florets 75+;
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corollas 6.5–7 mm, lobes usually reddish, sometimes yellow;
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anthers dark, appendages dark (style-branches yellow).
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Cypselae 5–6 mm, glabrate;
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pappi of 2 aristate scales 4.5–5 mm plus 1–4 smaller aristate scales 0.3–2 mm. 2n = 102 (subspecies unknown).
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lanceovate
oblong-lanceolate or rhombic-ovate
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lanceovate
oblong-lanceolate or rhombic-ovate
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