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Filago L., Sp. Pl. 927, 1199. 1753.; Gen.Pl. ed.5: 397. 1754; Boiss., Fl. Or. 3: 245. 1875; Hook.f., Fl. Brit. Ind. 3: 277. 1881; Smoljan. in Schischkin, Fl. URSS 25: 314. 1959; Wagenitz in Willdenowia 5: 395. 1969; Holub in P.H.Davis, Fl. Turkey 5: 101. 1975; Feinbrun-Dothan, Fl. Palaest. 3: 305. 1978; Wagenitz in Rech.f., Fl. Iran. 145: 15. 1980; Anderb. in Bremer, Asteraceae, Clad. & Class. 357. 1994; P. C. Pant in Hajra et al., Fl. Ind. 3: 43. 1995; S. Chaudhary, Fl. Kingd.Saudi. Arab. 2(3): 139: 139. 2000; Boulos & Hind in Boulos, Fl. Egypt 3: 198. 2002.
Evax Gaertn.Gifola Cass.Logfia Cass.Oglifa Cass.
Tomentose annual herbs of varying habit with alternate lanceolate to spathulate leaves. Capitula small, usually in dense glomerules, disciform. Glomerules numerous, often overtopped by lateral branches. Involucre ovate to pyramidate; phyllaries numerous, sometimes distinctly 5-seriate, at fruiting time convergent, divergent or even stellately spreading. Florets yellowish, very small, female florets filiform, the outer ones always without pappus and in the axils of the outer phylla¬ries (called receptacular scales by some authors), their cypselas sometimes included in the phyllaries. In the centre female florets with pappus and few (often 4-5) bisexual florets or only bisexual florets with or without pappus. Bisexual florets fertile or sterile. Cypselas very small, papillose, sometimes heteromorphous; pappus capillaceous, slightly scabrous.
A genus of c. 40 species mainly in the Mediterranean region and Western Asia, 6 species in Pakistan. Several species are very similar in habit and may be easily confused without close inspection.
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| 1 |
Central florets sterile, without pappus. |
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Filago arenaria |
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Central florets fertile, with pappus. |
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(2) |
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| 2 (1) |
Innermost phyllaries with ciliate margins. |
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Filago desertorum |
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Innermost phyllaries glabrous or with hairs on the surface not the margins. |
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(3) |
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| 3 (2) |
Phyllaries of the capitulum after flowering erect or slightly spreading, 20-25 (30) in 4 to 5(-6) series. |
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(4) |
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Phyllaries at fruiting time stellately expanded, c. 15 in 3 series. |
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(5) |
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| 4 (3) |
Phyllaries in 5 distinct series, involucre thus sharply 5-angled, glomerules nearly
spherical, main stem usually erect and relatively long. |
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Filago pyramidata |
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Phyllaries not in 5 distinct series, involucre terete; glo¬merules nearly hemispherical, main stem usually short with long prostrate to spreading lateral branches. |
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Filago hurdwarica |
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| 5 (3) |
Glomerules in a raceme- or panicle-like inflorescence. |
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Filago arvensis |
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Glomerule at the end of the stem overtopped by branches. |
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Filago paradoxa |
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Lower Taxa
Related Synonym(s):
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