Difference between revisions of "Dimorphotheca"
Methodus, 585. 1794.
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|distribution=s Africa. | |distribution=s Africa. | ||
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|tribe=Asteraceae tribe Calenduleae | |tribe=Asteraceae tribe Calenduleae | ||
|genus=Dimorphotheca | |genus=Dimorphotheca | ||
Latest revision as of 19:53, 5 November 2020
Annuals [perennials, subshrubs, shrubs], 5–40[150+] cm. Stems procumbent to erect [prostrate], glabrous or arachnose to piloso-hirtellous and/or stipitate-glandular. Leaves ± sessile or petiolate; blades oblong or oblanceolate to linear, margins entire or dentate [pinnately lobed], faces sparsely arachnose and/or stipitate-glandular. Heads borne singly. Involucres campanulate to hemispheric or broader, 5–20+ mm diam. Phyllaries 15–21 in 2(–3) series, lanceolate to lance-linear. Receptacles flat to conic. Ray florets 10–21+ in ± 1 series; corollas usually yellow to orange or white, sometimes purplish abaxially and/or at bases or apices, laminae oblong-elliptic to oblanceolate. Disc florets 15–50+, bisexual, all or mostly fertile (inner sometimes functionally staminate); corollas whitish or yellow, red, or purplish, tubes much shorter than ± campanulate throats (lobes sometimes with terete or dilated appendages). Cypselae (ray) triquetrous-prismatic to clavate, ± tuberculate or ridged; (disc) compressed, often winged, ± smooth. x = 9.
Distribution
Introduced; s Africa.
Discussion
Species 7–18+ (2 in the flora).
Selected References
None.
Lower Taxa
Key
| 1 | Ray corollas mostly yellow to orange adaxially | Dimorphotheca sinuata |
| 1 | Ray corollas mostly whitish adaxially | Dimorphotheca pluvialis |