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Pakistan | Family List | Labiatae | Acrocephalus

Acrocephalus hispidus (L.) Nicolson & Sivadasan in Taxon. 29: 324. 1980.

I.C. Hedge

  • Acrocephalus capitatus (Roth) Benth.
  • Acrocephalus indicus (Burm. f.) O. Kuntze
  • Gomphrena hispida L.
  • Prunella indica Burm. f.

    Annual. Stems 5-30 cm, usually much branched, rather slender, quadrangular, with a sparse indumentum of short eglandular hairs. Leaves narrowly to broadly elliptic, c. 2-4 x 1 cm, with a thin indumentum, mainly on nerves, of short white hairs, finely gland-dotted below, crenulate, petiolate. Inflorescence a globose-ovoid head, 5-15 x 5-9 mm. Bracts quadrate-rhombic, sub-tending 4-6 flowers. Calyx bilabiate, c. 1.5 mm in flower, with a thickish indumentum of white eglandular hairs at base of tube, with or without sessile oil globules, teeth ciliate-fringed; calyx in fruit c.4 mm with an oblong, apically rounded upper lip and 4 narrow triangular lower teeth. Corolla c. 2.5 mm, pale pink to purple, shortly 5-lobed. Stamens 4, projecting ± straight for-ward, included within corolla. Thecae globose, unilocular. Nutlets 0.7 x 0.4 mm, pale brown, slightly mucilaginous on wetting.

    Fl. Per.: October-November.

    Described from [SW India] Malabar (cf. Nicolson & Sivadasan in Taxon 29: 324. 1980).

    Distribution: Kashmir to Nepal, Bhutan, India, Indo-China, Malaysia.

    Characteristic features of the species are the annual habit, the ovoid flower heads, very small floral parts and the 1:4 calyx.


    Related Objects  
  • Illustration (M. Rafiq)
  • Illustration

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