Main features of the subsection :
Shrubs or small trees, to 11m. Lower surface of leaves covered with a thin one-layered indumentum composed of rosulate hairs , or with a two-layered indumentum, the upper layer of dendroid hairs . Inflorescence lax or dense, 4-30-flowered ; rachis 3-40mm. Calyx usually minute, rarely to 15mm. Corolla 5-lobed, open- to funnel-campanulate, nectar pouches usually absent (present in R. ririei). Stamens usually 10(-20). Ovary glabrous or with a thin white to dense rufous indumentum ; style glabrous or glandular to tip .
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