Sinosenecio B. Nordenstam (Q2952)
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Sinosenecio is a taxon with the rank genus within the tribe Senecioneae
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Sinosenecio B. Nordenstam
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Sinosenecio is a taxon with the rank genus within the tribe Senecioneae
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Statements
taxon/id/Sinosenecio B. Nordenstam
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Sinosenecio B. Nordenstam
Sinosenecio
B. Nordenstam
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 20: Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford University Press, New York.
accepted
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CA-BC
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Stems single or loosely clustered, erect.
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petiolate (petioles sometimes proximally dilated, ± sheathing stems, distally not winged);
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blades palmately or subpalmately nerved, ovate to subreniform [orbiculate to deltate], margins lobulate-dentate [dentate, denticulate, entire], faces glabrous or sparsely arachnose to tomentose.
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Heads radiate, borne singly [in corymbiform to paniculiform arrays].
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Calyculi 0 (cauline bractlets sometimes approaching bases of heads).
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Involucres campanulate to hemispheric, [3–] 6–10+ mm diam.
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Phyllaries persistent, usually 8 or 13 in (1–) 2 series, erect (reflexed in fruit), distinct [basally connate], ± lanceolate, equal, margins ± scarious.
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Receptacles flat to convex, smooth [foveolate, sometimes setaceous], epaleate.
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Ray-florets 8–13, pistillate, fertile;
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corollas yellow to orange-yellow (sometimes drying pink).
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Disc-florets [20–] 30–60+, bisexual, fertile;
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corollas yellow to orange-yellow, tubes shorter than or equaling funnelform [campanulate] throats, lobes 5, erect or recurved, lance-deltate;
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style-branches: stigmatic areas continuous [in 2 lines], apices rounded-truncate.
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Cypselae ± columnar to prismatic, 5-ribbed or 10-ribbed or nerved, glabrous [puberulent];
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pappi persistent (fragile [readily falling]), of 40–60, white, barbellulate to smooth bristles [absent on ray cypselae].
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