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Acanthopale laxiflora
Type of shrub From Wikipedia, the free encyclopedia
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Acanthopale laxiflora is a weak shrub growing up to two meters tall with woody stems. It is usually grown as an ornamental plant.[1] It grows primarily in the wet tropical biome.
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Acanthopale laxiflora occurs in Tanzania's Lushoto District, in the Magamba Forest in the Usambara Mountains.[2] This shrubby herb or soft-wooded shrub, attaining heights of up to 2 m, features young stems with distinctive wings and occasional appressed hairs at the nodes. Its foliage, characterized by an ovate to elliptic shape, measures between 6.5–18.5 cm long and 2.5–7 cm wide for larger leaves. The apex is acuminate to cuspidate, and the base attenuate. The leaves bears sporadic hairs along the midrib and veins beneath, with a modest array of hairs on the upper lamina.
The flowers are produced in elongated racemes, up to 16 cm long, with winged peduncles and short pedicels. The calyx, measuring between 7 and 12 mm, typically has a glabrous or sparsely sericeous appearance, adorned with linear lobes. The corolla, is white with a purple throat or streaks, and has sparse hairiness along a narrow dorsal band.[3]
Ecologically, this plant thrives in damp evergreen montane forests, flourishing at altitudes ranging from 1800–2300 m. Despite superficial similarities to the West African A. decempedalis, variations in bract and calyx indumentum set it apart. Notably, the plant has been observed to contribute to mass flowering events and subsequent diebacks, as evidenced on Mount Kilimanjaro during the years 1992 and 1993. While its distribution remains limited to this region, its presence enriches and diversifies Tanzania's botanical landscape.[4] According to Richards, these mass flowerings occur on a twelve-year cycle.[5]
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