Dyssodia Cavanilles (Q2965)
Dyssodia is a taxon with the rank genus within the tribe Tageteae
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Dyssodia Cavanilles
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Dyssodia is a taxon with the rank genus within the tribe Tageteae
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Statements
taxon/id/Dyssodia Cavanilles
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Dyssodia Cavanilles
Dyssodia
Cavanilles
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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Stems erect to decumbent, branched from bases or throughout.
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mostly opposite (distal sometimes alternate);
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blades (1–) 2–3-pinnatisect, primary lobes linear to linear-cuneate, ultimate margins entire or toothed, faces puberulent (little, if at all, setaceous at bases, on teeth, or at tips of lobes, oil-glands submarginal).
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Heads radiate, borne singly or in 2s or 3s [pseudocephalia].
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Calyculi of [0] 1–9 ± linear bractlets (lengths 1/2–1 phyllaries, bearing oil-glands).
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Involucres turbinate to campanulate [hemispheric], 5–10 mm diam.
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Phyllaries persistent, 6–12 in ± 2 series (distinct to bases or nearly so, oval-oblanceolate, each bearing 1–7 round to elliptic oil-glands).
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Receptacles convex, ± pitted (socket margins fimbrillate to setose), epaleate.
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Ray-florets usually 5–8, pistillate, fertile;
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corollas yellow-orange.
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Disc-florets 12–50 [–100+], bisexual, fertile;
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corollas yellow to orange, tubes shorter than cylindric throats, lobes 5, deltate to lance-deltate.
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Cypselae obpyramidal to obconic, subsericeous or glabrescent;
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pappi persistent, of 15–20 scales in ± 2 series (each scale comprising 5–10 basally connate, unequal bristles).
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