Pogonathria squarrosa (Roem. & Schult.) Pilg.

Gramineae

 
Author: D. B. Hoare
Synonyms
Common names

Herringbone grass, sekelgras (Afrikaans).

  Taxonomy

Chloridoideae, Chlorideae.

  Origin and geographic distribution

There are 4 species of Pogonathria from tropical and southern Africa. Pogonathria squarrosa is an occasional weed from tropical Africa found in the savanna and grassland vegetation.

  Description

A tufted, or sometimes shortly rhizomatous, sparse perennial grass that grow to a height of 270-1400 mm tall. The leaf blades are 40-330 mm long and 2.0-5.5 mm wide and the leaf sheaths are glabrous. The ligule is a fringed membrane. The inflorescence consists of numerous short brown racemes that curve upwards. The spikelets are solitary and 3.3-7.8 mm long. Pogonathria squarrosa is closely related to P. fleckii, but this species is an annual with slanted culms and hairy leaves.

  Use

A hard, unpalatable grass with low leaf production that is seldom grazed. The culms are sometimes tied together to make hand brooms.

  Leaf blade anatomy

C4 photosynthetic pathway.

  Toxicity

None reported and considered to be non-toxic.

  Ecology

It is a sub-climax species that colonises disturbed sandy soil in overgrazed rangeland. Occurs in dry woodland and grassland habitats where the rainfall may be from 300-800 mm per annum, but with hot tropical conditions.

  Soil requirements

Usually found in sandy or well-drained soils.

  Propagation and planting

Pogonathria squarrosa is not propagated.

  Growth and development

Summer growing species that flowers from November to May.

  Diseases and pests

None known.

  Performance

Moderate to slow-growing.

  Links
  References

Gibbs-Russell, G. E. Watson, L., Koekemoer, M., Smook, L. Barker, N. P.., Anderson, H. M., Dallwitz, M.J. 1991. Grasses of southern africa. Memoirs of the Botanical Survey of South Africa, No. 58, National Botanical Institute, Pretoria.

Van Wyk, E. & Van Oudtshoorn, F. 1999. Guide to grasses of southern Africa. Briza Publications, Arcadia, South Africa.