Camoensia scandens is a papilionoid legume inserted in the core genistoid clade. It has large, crepuscular, scented flowers but the corolla is non-papilionaceous, which deviates from the pattern found in the subfamily. The vexillum has a folded claw, forming a tube, which is opposed to the androecium opening; all petals have yellow-gold crinkled margins. In addition, there is a long hypanthium, which stores a translucid liquid. The goal of this study is to elucidate the ontogenetic pathways that result in such a peculiar flower and the glands responsible for the sweet fragrance of the petals. Floral buds and flowers were processed for SEM, TEM and light microscopy analyses. Five sepals arise unidirectionally followed by five petals that initiate simultaneously. After the petals, 11 stamens emerge unidirectionally; a pair of adaxial stamens is opposite to the vexillum. In the intermediate developmental stages the sepals unite basally; the two adaxial sepals unite with each other to a greater extent than with the other sepals. The filaments are basally connate, forming a tube with an adaxial opening at the base. The carpel emerges concomitantly with the two abaxial antepetalous stamens. The long hypanthium forms from the outer floral organs (base of the sepals, petals, filaments) and is attached to the base of the stipe. The corolla is noticeable in the intermediate stages of development. The crinkled golden margins house scent glands formed of a secretory epidermis with secretory trichomes and secretory subepidermal cells. The odor is composed of neutral polysaccharides, nitrogenous substances and essential oils. An extensive nectariferous region is found on the inner surface of the hypanthial tube. The nectar is translucent, viscous and released through large pores. The comparison of our data with that of other genistoid flowers enabled discussions about the pollination and systematics of the group.

茶树是插入核心雌蕊类进化枝中的乳突类豆科植物。它有大的，裂隙状的，有香味的花，但花冠无鳞状，不同于在亚科中发现的模式。前庭有一个折叠的爪子，形成一个与雄蕊开口相对的管子。所有花瓣的边缘都有金黄色的皱纹。另外，有一个长的玻璃瓶，它存储了半透明的液体。这项研究的目的是阐明导致这种奇特的花和腺体产生花瓣甜味的个体发育途径。处理花蕾和花朵以进行SEM，TEM和光学显微镜分析。五个萼片单向出现，随后五个花瓣同时开始。花瓣后，有11个雄蕊单生。一对前雄蕊与前庭相反。在中间发育阶段，萼片基部合生。两个相邻的萼片彼此之间的结合程度大于其他萼片。细丝在基部合拢，形成在底部具有轴向开口的管。心皮与两个背面的前瓣雄蕊同时出现。长的玻璃托碗由外部的花器官（萼片，花瓣，花丝的基部）形成，并附着在柄的基部上。花冠在发育的中间阶段很明显。皱纹的金色边缘容纳着由分泌表皮和分泌毛状体和表皮下皮下细胞组成的气味腺体。气味由中性多糖，含氮物质和精油组成。在腹膜管的内表面上发现了广泛的花蜜区。花蜜是半透明的，粘稠的并通过大孔释放。通过将我们的数据与其他Genistoid花的数据进行比较，可以对该组的授粉和系统学进行讨论。