Elephantopus scaber L., Sp. Pl.: 814. 1753.
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publication ID |
https://dx.doi.org/10.3897/phytokeys.37.6499 |
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persistent identifier |
https://treatment.plazi.org/id/17EDF996-BE74-7BEE-800D-2DDC18B20C35 |
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treatment provided by |
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scientific name |
Elephantopus scaber L., Sp. Pl.: 814. 1753. |
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Elephantopus scaber L., Sp. Pl.: 814. 1753.
Type.
Indiis, Ana-schovadi in Rheede, Hort. Malab. 10: 13, t.7. 1690. (Lectotype designated by Jeffrey in Jarvis & al. (ed.), Regnum Veg. 127: 44. 1993. Figs 8B-C View Figure 8 .
Description.
Perennial herbs. Stems lacking except for the flowering scape, erect, terete, inconspicuously ribbed, sericeous. Leaves in basal rosette at base, obovate or obovate-lanceolate, margin crenate or serrate, apex obtuse or acute, base attenuate, subcoriaceous. Capitulescences terminal, scapose. Foliose bracts 3, deltoid. Capitula tubular. Involucres green or with purple apex. Phyllaries 8, in 2 series, decussate, margin entire or piliferous. Florets 4; corollas salverform, white or purple, zygomorphic. Anthers ca. 2 mm long, apical appendage acute, base acute or rounded. Styles purple. Achenes clavate, 2-3 mm long, pubescent with dense twin hairs, lacking glands. Pappus of 5 bristles with dilated bases in one series, persistent.
Two varieties are recognized in Thailand.
Key to the varieties
| 1 | Leaves and inflorescences densely pilose-tomentose | var. penicillatus |
| - | Leaves and inflorescences sparsely pilose | var. scaber |
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