Okia H.Rob. & Skvarla, Proc. Biol. Soc. Washington 123(1): 88. 2010.
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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/64E3EC0E-3FD1-5F3E-9650-DCC9BB2E318E |
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treatment provided by |
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scientific name |
Okia H.Rob. & Skvarla, Proc. Biol. Soc. Washington 123(1): 88. 2010. |
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Okia H.Rob. & Skvarla, Proc. Biol. Soc. Washington 123(1): 88. 2010.
Type.
Cacalia birmanica Kuntze.
Description.
Annual herbs. Stems erect, inconspicuously ribbed, puberulous. Leaves cauline, lanceolate, margin serrate. Capitulescences terminal, loosely paniculate. Capitula campanulate, peduncles fistulose. Phyllaries imbricate, subglobular. Florets 20-55; corollas funnelform, white or purple. Achenes subterete, 10-ribbed, aculeate between ribs, carpopodium present. Pappus in 2 series of bristles, persistent, the outer ones are shorter than the inner ones. Pollen lophate, 3-porate, without micropuncta.
Two species are recognized in Thailand.
Key to the species
| 1 | Capitula 10-12 mm long, florets ca. 55, inner pappus ca. 7 mm long | Okia birmanica |
| - | Capitula 5-6 mm long, florets ca. 20, inner pappus ca. 5 mm long | Okia pseudobirmanica |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.