Rudbeckia grandiflora (Sweet) C. C. Gmelin ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle (Q2784)
Rudbeckia grandiflora is a taxon with the rank species within the section Rudbeckia sect. Rudbeckia
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| English |
Rudbeckia grandiflora (Sweet) C. C. Gmelin ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
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Rudbeckia grandiflora is a taxon with the rank species within the section Rudbeckia sect. Rudbeckia
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Statements
taxon/id/Rudbeckia grandiflora (Sweet) C.C. Gmelin ex de Candolle
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Rudbeckia grandiflora (Sweet) C.C. Gmelin ex de Candolle
Rudbeckia grandiflora
(Sweet) C.C. Gmelin ex de Candolle
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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US-AR
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US-GA
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US-IL
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US-KS
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US-KY
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US-LA
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US-MS
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US-MO
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US-OH
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US-OK
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US-TX
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Stems proximally glabrous or sparsely hairy (hairs spreading), distally strigose (hairs ascending).
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Leaves: blades elliptic, lanceolate, or ovate (± conduplicate, not lobed), bases cuneate to rounded, margins entire or remotely serrate, apices acute, faces strigose, abaxially glanddotted;
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basal petiolate, 10–35 × 2–11 cm;
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cauline petiolate (proximal) to nearly sessile (distal), 4–30 × 1.5–9 cm.
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Heads mostly borne singly.
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Phyllaries to 15 mm (strigose and glanddotted).
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Receptacles hemispheric to ovoid;
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paleae 5–6.5 mm, (apical margins glabrous) acuminate-cuspidate, awn-tipped, abaxial tips sparsely strigose.
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Ray-florets 12–25;
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laminae elliptic to obovate (reflexed), 20–50 × 5–10 mm, abaxially hairy and glanddotted.
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Discs 10–30 × 15–25 mm.
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Disc-florets 200–800+;
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corollas greenish yellow basally and in lobes, otherwise maroon, 3.5–5 mm;
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style-branches ca. 1.8 mm, apices obtuse.
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pappi coroniform, to 0.5 mm.
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