Cosmos Cavanilles (Q2582)

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Cosmos is a taxon with the rank genus within the tribe Coreopsideae
Language Label Description Also known as
English
Cosmos Cavanilles
Cosmos is a taxon with the rank genus within the tribe Coreopsideae

    Statements

    taxon/id/Cosmos Cavanilles
    0 references
    Cosmos Cavanilles
    Cosmos
    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
    Tropical and subtropical America
    especially Mexico
    widely elsewhere
    Stems usually 1, erect or ascending, branched distally or ± throughout.
    Leaves mostly cauline;
    petiolate or sessile;
    blades usually 1–3-pinnately lobed [undivided], ultimate margins usually entire, faces usually glabrous, sometimes glabrate, hispid, puberulent, or scabridulous.
    Heads radiate, borne singly or in corymbiform arrays.
    Calyculi of [5–] 8 basally connate, ± linear to subulate, herbaceous (striate) bractlets.
    Involucres hemispheric or subhemispheric [cylindric], 3–15 mm diam.
    Phyllaries persistent, [5–] 8 in ± 2 series, distinct, lanceolate, lance-oblong, lanceovate, or oblong, ± equal, membranous or herbaceous, margins ± scarious.
    Receptacles flat, paleate;
    paleae falling, linear, flat or slightly concave-convex, scarious (entire).
    Ray-florets [0, 5] 8 (more in “double” cultivars), neuter;
    corollas white to pink or purple, or yellow to red-orange.
    Disc-florets 10–20 [–80+], bisexual, fertile;
    corollas yellow [orange] (at least distally), tubes shorter than funnelform throats, lobes 5, ± deltate (staminal filaments hairy near anthers; style-branches linear, flattened, thicker distally, hirtellous, appendages relatively slender).
    Cypselae (dark-brown or black) relatively slender, quadrangular-cylindric or fusiform [outer somewhat obcompressed], sometimes slightly arcuate, attenuate-beaked, not winged [winged], faces glabrous or hispid to scabridulous or ± setose, sometimes papillate, usually with 1 groove;
    pappi persistent [falling], of 2–4 [–8] retrorsely [antrorsely] barbed awns, sometimes 0.