Dalbergia armata

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Hluhluwe creeper
Dalbergia armata, loof, a, Krantzkloof NR.jpg
Dalbergia armata, stekels, Krantzkloof NR.jpg
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fabales
Family: Fabaceae
Genus: Dalbergia
Species: D. armata
Binomial name
Dalbergia armata
E.Mey.
Synonyms

Dalbergia myriantha Meisn.[1]

The Hluhluwe creeper (Dalbergia armata) is a scrambling, deciduous species of legume that is native to subtropical to temperate regions of southeastern Africa. The robust, woody liana or small tree[2] is armed with strong spines on the main stem and branches.[3] It occurs sparsely or commonly in forest, bush, riparian fringes and in wooded ravines.[4] It is sometimes employed as a bonsai subject,[2][5] and it can be propagated from either seed or cuttings.[6]

Range[edit]

It occurs widely in coastal, montane or riparian forests of southern Tanzania,[1] Mozambique, Swaziland and eastern South Africa. In South Africa it is present in the Eastern Cape, KwaZulu-Natal, Mpumalanga and Limpopo provinces.[4] The Hluhluwe River is named after this species,[7] due to its prevalence on the banks of the river. The species is virtually confined to White’s Tongaland-Pondoland centre of endemism.[1]

Description[edit]

Their thick (up to 15 cm) and 10 to 30 m long ropes[2] have sturdy, sideways-directed spines which may grow in clusters, and encircle the stems. The spines which are up to 10 cm long,[8] hook onto adjacent vegetation to direct the plant towards the canopy. The bark is dark greyish brown.

The alternate leaves are up to 8 cm long, finely compound and are bluish green on their upper surfaces.[2] The 21 to 41[8] oblong leaflets (i.e. 10 to 20 pairs plus terminal) have a sub-opposite or alternate arrangement.[9] The leaflets close in overcast weather, and the foliage is popular with browsing animals.

Draped over a forest tree

Their very small,[9] sweetly scented flowers are creamy-white in colour.[2] They appear in early summer, and are born in dense terminal or axillary clusters.[9] The small and thin seed pods measure about 5 by 2 cm. They are papery in texture[3] and lemon-yellow to pale brown in colour.[2] The indehiscent fruit which hold 1 to 3 seeds each,[1] are often produced in profusion. They appear in clusters on horizontal branch tips, from late summer.[3][2]

Similar species[edit]

The Zebra-wood is also armed and has an overlapping range, but its leaflets are fewer (7 to 13) and larger, while its flowers vary from white to pink.[4] Other Dalbergia species of the region have hairy pods, or velvety undersides to the leaflets. The Thorny elm has simple leaves.

References[edit]

  1. ^ a b c d Brummitt, R. K.; et al. (2007). "Dalbergia armata E. Mey". Flora Zambesiaca. Leguminosae. 3 (3). Retrieved 20 March 2014. 
  2. ^ a b c d e f g Pooley, Elsa (1997). Trees of Natal, Zululand and Transkei. Durban: Natal Flora Publications Trust. p. 168. ISBN 0-620-17697-0. 
  3. ^ a b c Palgrave, K. C. (1984). Trees of Southern Africa. Cape Town: Struik. p. 105. ISBN 0-86977-081-0. 
  4. ^ a b c Palmer, Eve (1977). A Field Guide to the Trees of Southern Africa. London, Johannesburg: Collins. pp. 91–92. ISBN 0-620-05468-9. 
  5. ^ Bent, Tony. "Dalbergia". Cape Bonsai Kai. Retrieved 18 March 2014. 
  6. ^ "Dalbergia armata". Sunshine Seeds. Retrieved 20 March 2014. 
  7. ^ Raper, P. E. Hluhluwe (N 2831/2832). Dictionary of Southern African Place Names. archive.org. Retrieved 28 October 2013. 
  8. ^ a b Van Wyk, Braam; et al. (1997). Field Guide to Trees of Southern Africa. Cape Town: Struik. p. 454. ISBN 1-86825-922-6. 
  9. ^ a b c Harvey, W. H. (1894). "DALBERGIA armata E. Mey. [family LEGUMINOSAE-PAPILIONOIDEAE]". Flora Capensis. 2: 1. Retrieved 18 March 2014.