Botanical Survey of India | Flora of India

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Hoary or woolly herbs. Leaves alternate. Heads heterogamous, in terminal or axillary corymbs or fascicles. Involucre ovoid or campanulate; bracts many, scarious or with a white, yellow or brown scarious blade. Receptacle naked or pitted. Ray florets female, fertile, 2-many, with filiform corollas, 3 - 4 toothed. Disc florets bisexual, few, tubular, slender; limb dilated, 5-toothed. Anther bases sagittate; tails slender. Style arms of bisexual florets truncate or capitate. Achenes oblong or obovoid, small, usually minutely scaly or papillose. Pappus hairs 1-seriate, plumose, slender or thickened at tip, connate at base or not.

Cosmopolitan in distribution; ca 300 species, 10 in India.

Literature. CABRERA, A.L. (1961). Observations Sobre Las Inuleae Gnaphalineac (Compositae) de America del sur. Bot. Soc. Argenl. Bot. 9: 359 - 386. DRURY, D.G. (1910). A fresh approach to the classification of the genus Gnaphalium with particular reference to the species present in New Zealand (lnuleae-Compositae). New Zealand J. Bot. 8: 222-248. GRIERSON, A.J .C . (1971). The Identity of Gnaphalium indicum Linn. Nates Roy. Bot. Gard. Edinb. 31: 135 - 138. GRIERSON, A.J.C.(1975). Gnaphaliunm Materials for a flora of Turkey XXXI. Notes Roy. Bot. Gard. Edinb. 33(3): 421 - 424. HILLARD, O.M. & B.L. BURTT (1981). Some generic concepts in Compositae. Bot. J. Linn. Soc. 82: 181 - 232. JEFFERY, C. (1979). Note. on the lectotypification of the names of Cacalia L. Matricaria L. and Gnaphalium L. Taxon 28(4): 349- 351. KITAMURA, S. (1978). La Correspondance du Museum national d'histoire naturelle Paris. Acta Phytolax. Geobot. 53(5): 129 - 130. KOSTER, JOSEPHINE TH. (1941). Notes on Malayan Compositae. Blumea 4(3): 482-485.



KEY TO THE SPECIES


1a. Heads in leafless corymbose clusters 4. Gnaphalium luteo-album
b. Heads in leafy spikes or in axillary or terminal clusters 2
2a. Stout herbs; leaf bases semiamplexicaul, more or less decurrent 3. Gnaphalium hypoleucum
b. Slender herbs; leaf bases attenuate or narrowed to the stem 3
3a. Pappus hairs coherent at base to form a ring 4
b. Pappus hairs free, 6
4a. Lower surface of leaves white pannose, the subappressed hairs tightly emeshed 8. Gnapbalium purpureum
b. Lower surface of leaves loosely villous lanate to appressed white tomentose 5
5a. Leaves large; inflorescence prominently leafy 5. Gnaphaliwn pensylvanicum
b. Leaves small; inflorescence almost leafless 1. Gnaphalium coarctatwn
6a. Leaves flaccid 2. Gnaphalium flaccidum
b. Leaves not flaccid 7
7a. Achencs sub silky or scabrid 9. Gnapbaltum stewartii
b. Achenes minutely papillose 9
8a. Prostrate, diffusely branched herbs 7. Gnaphaliun pulvinatum
b. Erect herbs 8
9a. Heads in terminal, alobose clusters 10. Gnapbaliun thomsonii
b. Heads in spikes 6. Gnaphalium polycaulon


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