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Published In: Species Plantarum 2: 906. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 5/8/2022)
Acceptance : Accepted
Project Data     (Last Modified On 3/1/2022)
Contributor Text: Anjum Perveen & M. Qaiser
Contributor Institution: Centre for Plant Conservation, University of Karachi – PAKISTAN

Fl.Per.: June–Oct.                   Vern.: Cutleaf cone flower, Golden Glow


Lectotype: Habitat Virginia Canada: 6550, without data (Cornut, Canad. Pl. 179 fig. "Aconitum helianthemum Canad.". 1635. Lectotypified by Reveal & Jarvis, Taxon 58: 980–981. 2009).


North America, cultivars of Rudbeckia laciniata are grown as ornamentals all over the world including Pakistan. The cultivar ‘golden–glow’ is widely planted in Pakistan and occasionally escapes from cultivation.


Cultivated in Rawalpindi, Islamabad and Murree. 


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Rhizomatous, 50–300 cm tall, perennials, rhizomes often elongated, slender. Leaves basal and cauline, green, broadly ovate to lanceolate, upper most 1–2–pinnatifid or pinnately lobed, lobes 3–11, with cuneate to attenuate or cordate bases, margins entire or dentate, apices acute to acuminate, glabrous or hairy on either side, sometimes with translucent patches; basal leaves petiolate, often withering before flowering, 15–50 cm long, 10–25 cm wide; cauline leaves petiolate or sessile, mostly lobed to pinnatifid, sometimes unlobed, 8–40 cm long, 3–20 cm wide. Capitula 2–25 in loose, corymbiform synflorescense, 7–12 cm across. Phyllaries 8–15, upto 2 cm long, ovate to lanceolate, margins ciliate or not. Receptacle hemispheric or ovoid to globose, paleae 3–7 mm long, with apices (at least of proximal) truncate or rounded, abaxial tips densely hairy. Ray florets 8–12, ligule elliptic to oblanceolate, 15–50 mm long, 4–14 mm wide, abaxially hairy. Disc florets  numerous, limb yellow to yellowish green, 3.5–5 mm long; style branches 1–1.5 mm long, apices acute to rounded. Cypselas 3–4.5 (–6) mm long, compressed, tetrahedral, glabrous. Pappus coroniform or of 4, upto 1.5 mm long scales.

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