Rudbeckia grandiflora (Sweet) C. C. Gmelin ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle (Q2784)

From Canadian Flora Commons
Jump to navigation Jump to search
Rudbeckia grandiflora is a taxon with the rank species within the section Rudbeckia sect. Rudbeckia
Language Label Description Also known as
English
Rudbeckia grandiflora (Sweet) C. C. Gmelin ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
Rudbeckia grandiflora is a taxon with the rank species within the section Rudbeckia sect. Rudbeckia

    Statements

    taxon/id/Rudbeckia grandiflora (Sweet) C.C. Gmelin ex de Candolle
    0 references
    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
    Rudbeckia grandiflora
    (Sweet) C.C. Gmelin ex de Candolle
    rudbeckie à grandes fleurs (French)
    rough coneflower (English)
    large-flowered coneflower (English)
    rudbeckie grandiflore (French)
    Largeflower or rough coneflower (English)
    Stems proximally glabrous or sparsely hairy (hairs spreading), distally strigose (hairs ascending).
    Leaves: blades elliptic, lanceolate, or ovate (± conduplicate, not lobed), bases cuneate to rounded, margins entire or remotely serrate, apices acute, faces strigose, abaxially glanddotted;
    basal petiolate, 10–35 × 2–11 cm;
    cauline petiolate (proximal) to nearly sessile (distal), 4–30 × 1.5–9 cm.
    Heads mostly borne singly.
    Phyllaries to 15 mm (strigose and glanddotted).
    Receptacles hemispheric to ovoid;
    paleae 5–6.5 mm, (apical margins glabrous) acuminate-cuspidate, awn-tipped, abaxial tips sparsely strigose.
    Ray-florets 12–25;
    laminae elliptic to obovate (reflexed), 20–50 × 5–10 mm, abaxially hairy and glanddotted.
    Discs 10–30 × 15–25 mm.
    Disc-florets 200–800+;
    corollas greenish yellow basally and in lobes, otherwise maroon, 3.5–5 mm;
    style-branches ca. 1.8 mm, apices obtuse.
    Cypselae 2–3 mm;
    pappi coroniform, to 0.5 mm.