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Melhania denhamii R.Br.

Ara.: Tibat, dabbagh, riba hamboak (last 2 in Egypt).

Perennial shrub, up to 0.8 m in height, with stellate-tomentose young stems, leaves and inflorescences. Leaves with leaf blade ovate to elliptic, 1-4 × 0.5-2 cm, subacute or emarginate at the apex, with margins entire to dentate-serrated. Petiole 0.5-1 cm long. Stipules filiform, 3-6 mm long. Flowers in groups of 3-4, forming pubescent to tomentose cymes, sometimes solitary; peduncle 0.5-4 cm long, pedicels 3-7 mm; bracteoles (epicalyx) 0.5-0.8 × 0.5-1 cm when flowering; fruiting bracteoles 1.5-2 × 1.5-2.5 cm, reniform, pubescent, free at the base. Sepals 5-8 × 2-3 mm, hairy when fruiting. Petals yellow, 5-7 mm long. Stamens 5, alternating with 5 staminodes 4-5 mm. Ovary sessile, with style 0.5 mm long, ending in 5 stigmas. Fruit in loculicidal capsule, 5-7 mm, subglobose-ovoid, pubescent, with 1-2 seeds per locule. Seeds 2-3 mm, obtrigonal, smooth, brown.

Flowering:

March to December.

 

Fruiting:

April to January.

Habitat:

Open thickets in rocky soils.

Distribution:

Mauritania, Senegal, Mali, Niger, Chad, SE of Egypt, Sudan, Ethiopia, Somalia, Arabian Peninsula, reaching India to the E.

Conservation status:

Fairly rare species, but widely distributed. Currently, it has not been assessed at a global level in the IUCN Red List of Threatened Species. In the updated red list of Egypt (Shaltout & Bedair, 2023) it has been considered as Vulnerable (VU).

Melhania denhamii. SE Tamanrasset. Salima Benhouhou (1)
Melhania denhamii. General aspect and habitat in the SE of Tamanrasset (Algeria). Salima Benhouhou.
Melhania denhamii. SE Tamanrasset. Salima Benhouhou (2)
Melhania denhamii. Twigs with leaves and fruit (capsule). Salima Benhouhou.
Melhania denhamii. SE Tamanrasset. Salima Benhouhou (3)
Melhania denhamii. Detail of fruit (capsule). Salima Benhouhou.
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