Draft:Cabomba haynesii

'''Cabomba haynesii, commonly known as fishgrass, is a perennial aquatic plant belonging to the family Cabombaceae and the genus Cabomba. It lives in fresh standing water or with small currents such as rivers or lakes and is native to Central America to W. Central Brazil and the Caribbean.'''

Description
Cabomba haynesii exhibits two distinct leaf types: floating and submerged. The floating leaves are linear and two-branched, helping its flower to float on the water's surface. The submerged leaves are palmate-partite and remain submerged.

The flowers of Cabomba haynesii are white and small, and they flower in synchrony. The flowers open and close in a continuous cycle over two days. They open during the day and submerge at night. On the first day, the floral peduncle remains at a height of 1-2 cm above the water surface while lifting the bud. On the second day, the floral peduncle remained 2-3 cm above the surface of the water. The stigmata and anthers matured at different times on the second day. The anthers had a strong yellow coloration. The buds develop underwater.

The flowers exhibit actinomorphic and trimerous morphology. The sepals are oblong in shape with a truncate base, while the petals are also oblong with a narrow stalk-like base. The gynoecium is cyclic and yellow, with short trichomes, and the stigmata is with long and delicate papillae.

The stems of Cabomba haynesii exhibit a cylindrical morphology with red, fine, longitudinal striations. Due to their fragile composition, they can be decomposed rapidly. The stems are composed of two distinct portions: a basal portion that is horizontal in orientation and an ascendant portion that ascends vertically. The basal portion remains submerged, while the ascendant portion is situated above the water's surface. The surface of the stem is covered with multicellular trichomes, and the stem nodes are reddish in colour.

The fruit develops when the flower is submerged. The fruit typically develops one or two seeds, which are oval in shape. Once matured, the seeds become yellowish with several small red spots and display a tuberculate testa. The fruit is protected by a marcescent perianth and falls to the bottom of the aquatic environment, where it begins germination.