Packera Á. Löve & D. Löve (Q2890)
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Packera is a taxon with the rank genus within the tribe Senecioneae
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Packera Á. Löve & D. Löve
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Packera is a taxon with the rank genus within the tribe Senecioneae
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Statements
taxon/id/Packera Á. Löve & D. Löve
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Packera Á. Löve & D. Löve
Packera
Á. Löve & D. Löve
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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Stems single or clustered.
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petiolate (mostly basal) or sessile;
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blades pinnately nerved, elliptic, lanceolate, linear, lyrate, orbiculate, ovate, reniform, or spatulate (and most intermediate shapes, blades often pinnately lobed to pinnatifid or pinnatisect), ultimate margins entire or crenate, dentate, or serrate to denticulate (callous denticles relatively few or 0).
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Heads radiate or discoid, borne singly or in compact or congested to open, corymbiform, cymiform, or subumbelliform arrays.
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Calyculi 0 or 1–5+ bractlets.
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Involucres campanulate to cylindric, 5–12 mm diam.
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Phyllaries persistent, usually 8, 13, or 21 (–30+) in 1–2 series, erect (reflexed in fruit), distinct, (light to dark green, yellowish, reddish, or cyanic) linear to ensiform, equal to subequal (glabrous or hairy), margins usually ± scarious.
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Receptacles flat, foveolate, epaleate.
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Ray-florets 0 or (1–) 5–13, pistillate, fertile;
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corollas pale-yellow to orange-red (tubes 1–4 mm, laminae 4–16 mm).
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Disc-florets 20–80+, bisexual, fertile;
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corollas pale-yellow to deep orange-red, tubes shorter than to equaling campanulate throats, lobes 5, erect to recurved, usually ± deltate;
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style-branches stigmatic in 2 lines, apices usually truncate-penicillate.
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Cypselae cylindric, usually 5–10-ribbed (ribs usually prominent), glabrous or hirtellous;
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pappi readily falling, of ± 60+, white, barbellulate bristles.
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in compact or congested to open corymbiform cymiform or subumbelliform , , , arrays
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congested
open corymbiform cymiform or subumbelliform
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