Fig. 2- Heteranthera lutea

Heteranthera lutea. A, habit, showing an individual with petiolate and sessile leaves; B, habit, showing a submerged individual with only sessile leaves; C, detail of the one-flowered inflorescence, showing the tetramerous flower. Plate modified from the Flore de Madagascar et des Comores, Pontédériacées (1946), vol. 38: pp. 5; acquired through the Biodiversity Heritage Library (BHL).

黄异蕊草（Heteranthera lutea）。图版A示植株整体形态，展示兼具叶柄叶与无柄叶的个体；图版B示植株整体形态，展示仅具无柄叶的沉水个体；图版C示单花花序细节，呈现四数花结构。本图版改编自《马达加斯加与科摩罗植物志》（Flore de Madagascar et des Comores）雨久花科（Pontédériacées）分册，1946年，第38卷，第5页；该资源由生物多样性遗产图书馆（BHL）提供。