Silphium terebinthinaceum Jacquin (Q2801)
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Silphium terebinthinaceum is a taxon with the rank species within the genus Silphium
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English |
Silphium terebinthinaceum Jacquin
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Silphium terebinthinaceum is a taxon with the rank species within the genus Silphium
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Statements
taxon/id/Silphium terebinthinaceum Jacquin
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Silphium terebinthinaceum Jacquin
Silphium terebinthinaceum
Jacquin
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-ON
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US-AL
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US-AR
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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-KY
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US-MI
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US-MS
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US-MO
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US-NC
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US-NY
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US-NE
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US-OH
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US-SC
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US-TN
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US-VA
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US-WI
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Stems terete, glabrous.
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Leaves: basal persistent, petiolate;
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cauline alternate, petiolate or sessile;
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blades cordate, deltate, lanceolate, ovate, or sagittate, 3–40 × 1–40 cm, sometimes (proximal) pinnately lobed, bases attenuate, cordate, hastate, round, or truncate, ultimate margins coarsely toothed or entire, apices acuminate, acute, or obtuse, faces glabrous or scabrous.
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Phyllaries 23–33 in 2–3 series, outer appressed, apices obtuse to acute, abaxial faces glabrous.
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Ray-florets 17–29;
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Disc-florets 120–140;
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Cypselae 7–13 × 4–10 mm;
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