Ceylon lobelia is a delicate herbaceous species with a slender stem, thriving in the tropical climates of its native range. Its vibrant blue flowers, tubular in shape, punctuate the foliage consisting of small, green, lanceolate leaves. The plant's preferred habitat includes moist, well-drained soils near water bodies, where its striking blooms often attract pollinators. Ceylon lobelia's distinctiveness lies in its flower's intense hue, contrasted against a backdrop of verdant leaves, making it a notable presence in its natural environment.