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Pakistan | Family List | Acanthaceae

9. Strobilanthes Blume, Bijdr. 781. 1826. Nees in DC., Prodr. 11: 177. 1847. Benth. & Hook. f., Gen. Pl. 2: 1086. 1862; Clarke in Hook. f., Fl. Brit. Ind. 4: 429. 1885; Bremekamp, C.E.B., Materials for a monograph of the strobilanthinae Verh. Ned. Akad. Von Wet., Verh. (Tweede Sectie) D1, 41, 1: 1-306. t. 1-6. 1944.


Erect shrubs or herbs with terete or ± quadrangular slightly 4-winged twigs. Leaves thick-coriaceous, opposite or sometimes pseudo-alternate, the members of a pair occasionally unlike, entire, crenate or toothed, acute to short acuminate. Flowers white, purplish pink or blue and white, solitary or in axillary and or terminal, lax or condensed, interrupted spikes or panicles or capitate, heads; bracts solitary, foliaceous or small, persistent or caducous; bracteoles 2, small or absent. Calyx deeply 5-lobed, lobes equal or unequal, valvate, Corolla campanulate, tube cylindric below, straight or curved, ventricose above, limb subequally 5-lobed, lobes twisted in bud, patent or reflexed. Stamens usually 4, didynamous and basally monadelphous, included or exserted, some¬times, 2, equal, included, 2 staminodes occasionally present; anther cells parallel, free muticous, glabrous or bearded at one end. Ovary oblong-globular, bilocular, 4-8-ovuled; style filiform, stigma with one obsolete lobe. Capsule oblong, apically pubescent or glabrous, 4-8-seeded, retinacula strong, curved. Seeds glabrous or appressed hairy, much compressed.

A genus comprising of nearly 250 species, distributed in Madagascar and Tropical Asia. Represented by 5 species in Pakistan.

1 Bracts persistent   (2)
+ Bracts soon caducous   (4)
2 (1) Twigs terete. Calyx lobes longer than bracts. Capsule glandular-pubescent   1 Strobilanthes glutinosus
+ Twigs 4-angled. Calyx lobes shorter than bracts. Capsule glabrous   (3)
3 (2) Calyx lobes linear-oblong, patently glandular-hairy all over, slightly enlarged in fruit. Flowers blue to dark blackish-blue, 2.5-3 cm across   2 Strobilanthes atropurpureus
+ Calyx lobes linear-lanceolate, glabrous except the glandular hairy apices, much enlarged in fruit. Flowers pale-blue, less than 2 cm across   3 Strobilanthes wallichii
4 (1) Leaves nearly sessile or attenuated to up to 2.5 cm long petiole. Flowers in capitate heads or condensed spikes. Bracts equal to calyx   4 Strobilanthes dalhousieanus
+ Leaves basally cordate or ± rounded, on long apically winged peiole. Flowers in lax paniculate spikes. Bracts shorter than the calyx   5 Strobilanthes urticifolia

Lower Taxa

Related Synonym(s):


Related Objects  

Flora of China  
  • Strobilanthes (PDF)
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