Nechamandra

Nechamandra alternifolia is a species of the monotypic genus in the family Nechamandra the frog bite plants ( Hydrocharitaceae ).

Description

Nechamandra alternifolia is a submersed, perennial, herbaceous plant. The stems are thin, elongated and highly branched. The leaves are alternate on the stem base but also against constantly and tufted at the end of the stalk towards tight. They are 2-7 inches long, 1 to 1.5 inches wide, linear, with a pointed end. The midrib is not clear and differs only slightly from the other parallel leaf veins.

The plants are dioecious, the flowers unisexual. Male inflorescences are stalked and consist of 60 to 100 flowers. The inflorescence axis is translucent. The spathe is about 5 × 4 mm large, membranous - translucent, egg-shaped and two columns at the top. The male flowers are tiny. Your thin pedicel is about 0.6 millimeters long. The three sepals are kronblattartig, ovoid, white and transparent. The three petals are small and about the same size as the sepals. The two or three stamens are arranged opposite the sepals. The stamens are thin and about 0.3 millimeters long. The spathe of the female flowers is about 5 millimeters long, tubular, sitting and has only one flower on. The female flowers are similar to the male. The sepals are 0.5 to 1 × 0.4 to 0.7 millimeters in size. The ovaries are 5 to 10 millimeters in size, oblong, flattened and elongated at the tip into a beak. The three pens are emarginate at the tip and densely covered with papillae. The fruit is ovate -oblong or linear. The seeds are numerous, elongated and tiny.

The nature blooms and bears fruit in September and October.

The chromosome number is 2n = 14

Occurrence

Nechamandra alternifolia occurs in the southern Chinese provinces of Guangdong and Guangxi, India, Nepal, Sri Lanka, Bangladesh, Burma and Vietnam. It grows in ponds, lakes and slow-flowing rivers and canals.