Botanical Survey of India | Flora of India

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Herbs, undershrubs or shrubs, annual or perennial, usually aromatic; stems simple or branched, erect, sometimes procumbent, climbing or prostrate, glabrate or variously pubescent. Leaves alternate, simple, linear-lanceolate, oblong, ovate, obovate or oblanceolate, base decurrent, semi-amplexicaul or tapering, entire or pinnately or lyrately lobed, the apex usually apiculate, sometimes acute, the margins, serrate, dentate or denticulate, both surfaces generally pubescent, sessile or subsessile. Heads heterogamous, disciform, solitary axillary or terminal, arrangoo in lax to compact panicles or glomerulate, few or many, sessile or pedunculate. Involucral bracts multi-seriate; outer ones usually linear, sometimes oblong to ovate, herbaceous, smaller; the inner linear or linear oblong, hairy or pubescent on the dorsal surface, with scarious margins. Receptacles naked or epaleaceous, flat, convex or rarely slightly concave, areolate or alveolate, glabrous or pilose or densely pubescent. Florets numerous, multiseriate; the central ones usually bisexual, rarely neutral; the marginal ones female. Corolla of central florets mostly yellow, sometimes pinkish, or purple; tubular, 5-lobed; lobes angular, papillate, glabrous or pubescent on lobes, rarely on tubes; corolla of female florets usually filiform, slender, 2-4 lobed, generally glabrous, sometimes pubescent. Anthers tailed. Achenes brown, oblong, angular or ribbed, glabrous or pubescent. Pappus white, yellowish or red, uniseriate, with numerous, slender, barbell ate hairs.

Tropical and subtropical regions of S.E . Asia, Africa and Australia; ca 50 species, 29 in India.

Literature. DAKSHINI. K.M.M. & PRITHIPAL SINGH (1977). Numerical Taxonomy of the Genus Blumea in India. Phytomorph. 27: 247-260. K.M.M. DAKSHINI (1977). Chemotaxonomic studies on the genus Blumea DC. (Asteraceae-Inuleae) in India. Acta. Bot. Ind. 5(2): 143-159.3. RANDERIA, A.I. (1960). The composite genus Blumea, a taxonomic revision. Blumea 10: 176-317.


1a. Leaves decurrent. forming wings on stem 28. Blumea venkataramanii
b. Leaves not forming wings on stem 2
2a. Plants densely white-woolly all over 3
b. Plants glabrate or variously pubescent but never woolly all over 7
3a. Leaves spiny toothed; corolla of bisexual florets hairy on tube and on lobes 17. Blumea malcolmii
b. Leaves not spiny toothed; corolla of bisexual florets hairy only on lobes 4
4a. Outer involucral bracts oblong-lanceolate, acute 11. Blumea hieracifolia
b. Outer involucral bracts linear, tapering 5
5a. Heads 14-18 mm in diam. 18. Blumea martiniana
b. Heads 4-12 mm in diam. 6
6a. Heads peduncled; leaves membranous; oblong-lanceolate 12. Blumea hookeri
b. Heads scssile; leaves densely tomentose beneath, elliplic-lanceolate 8. Blumea densiflora
7a. Outer involucral bracts oblong-ovat to oblong-lanceolate 8
b. AU involucral bracts linear or lanceolate 13
8a. Leaves glabrate on upper surface 9
b. Leaves variously pubescent on upper surface 11
9a. Erect; leaves oblanceolate; receptacle fimbrillate; corolla lobes of female florets glabrous or nearly so 16. Blumea lanceolaria
b. Scandent; leaves obovate-oblong or elliptic-oblong; reeeplacies densely pubescent; corolla lobes of female florell hairy 10
10a. Heads 8-13 mm across; panicles many headed 25. Blumea riparia
b. Heads 14-18 mm across; panicles few headed 19. Blumea megacephala
11a. Heads in narrow, elongate, panicles 7. Blumea clarkei
b. Heads in large, spreading panicles 12
12a. Leaves 20-30 cm long, petiolate; branches glabrous; heads 1.5 cm across; corolla lobes of biscxual florets pubescent 27. Bluma sikkimensis
b. Leaves 10-18 cm long, sessile; branches villous or lomentosc; heads 1-1.2 cm across; corolla lobes of bisexual florets hairy 24. Blumea procera
13a. Receptacle fimbrillate 1. Blumea aromatica
b. Receptacle glabrous or pilose 14
14a. Pappus reddish 15
b. Pappus white 16
15a. Leaves pinnately lobed and coarsely dentate; corolla lobes of bisexual florets with colleten and multicellular hairs 13. Blumea junghuhniana
b. Upper leaves unlobed, minutely serrate; corolla lobes of bisexual florets with colleters only 2. Blumea balsamifera
16a. Corolla lobes of bisexual florets with multicellular hairs in addition to colleters 17
b. Corolla lobes of bisexual florets glabrous or with unicellular hairs in addition to colleters 18
17a. Leaves acute, remotely denticulate; involucral bracts almost equal to the length of florets 6. Blumea bovei
b. Leaves apiculate, serrate-dentate; involucral bracts longer than florets 22. Blumea obliqua
18a. Heads solitsry axillary or terminal; the uppermost pair of leaves subopposite 5. Blumea bifoliata
b. Heads glomerulate or variously paniculate, all leaves alternate 19
19a. Heads glomerulate; the clusters interruptly spicate 20
b. Heads paniculate 21
20a. Receptacle glabrous; leaves lyrately lobed; involucral bracts acuminate 26. Blumea sessiliflora
b. Receptacle pubescent; leaves not lobed; involucral bracts acute 10. Blumea fistulosa
21a. Leaves spiny toothed; corolla hairy 22
b. Leave. not spiny toothed; corolla of female florets glabrous 24
22a. Heads in sessile, axillary clusters; anthers well developed; achenes terete 4. Blumea belangeriana
b. Heads in pedunculate clusters; anthen abortive; achenes angled 23
23a. Prostrate herbs with branches radiating from the rootstock; corolla hairy on lobes; leaves irreaularly dentate 23. Blumea oxyodonta
b. Erect herbs; corolla lobes and tubes hairy all over-leaves alternately long and short toothed 9. Blumea eriantha
24a. Receptacle minutely pilose 15. Blumea laciniata
b. Receptacle glabrous 25
25a. Achenes subangular, terete, not ribbed 26
b. Achenes ribbed 27
26a. Heads purple; leaves not lyrately lobed 21. Blumea mollis
b. Heads yellow; leaves lyrately lobed 14. Blumea lacera
27a. Leaves white pubescent on the lower surface 3. Blumea barbata
b. Leaves not white pubescent on the lower surface 28
28a. Plants glabrous 29. Blumea virens
b. Plants pubescent or glandular 20. Blumea membranacea

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