Wolffia is a genus of aquatic plants with a cosmopolitan distribution. [1] . They include the smallest flowering plants on Earth. [2] . Commonly called watermeal or rootless duckweed, [3][4] these aquatic plants resemble specks of cornmeal floating on the water.

2021年7月22日 · The watermeal Wolffia australiana is the smallest monocot plant known to date and has a high total protein content that varies from 20% to 30% of the freeze-dry weight 1. The latter makes...

Wolffia arrhiza, commonly known as spotless watermeal or rootless duckweed, is a species of flowering plant in the Araceae family, which includes other water-loving plants such as Arum and Pistia. It is the smallest vascular plant on Earth.

It is the smallest flowering plant in the world flourishing in temperate, sub-tropical, and tropical locations. Each plant is typically 1/42" long and 1/85" wide. This aquatic plant, resembling cornmeal, is found floating on the surface of still to slowly moving waters of ponds, lakes, beaver ponds, ditches, and swamps.

2019年11月19日 · Each Wolffia flower consists of a single pistil and stamen; it also produces the world’s smallest fruit, called a utricle. The plant is found in quiet freshwater lakes or marshes with species worldwide. Since the plants have no roots, they can easily float on the surface of the water, where they resemble cornmeal.

微萍属（学名： Wolffia ），也称芜萍属，是浮萍科下的一个属。该属共有约10种，分布于热带和温带地区。 [1]

芜萍（ Wolffia arrhiza (L.) Wimmer）是天南星科芜萍属植物，飘浮水面或悬浮，细小如沙，为世界上最小的种子植物。叶状体卵状半球形，上面绿色，扁平，具气孔，背面凸起，淡绿色，表皮细胞五至六边形；无叶脉及根。

2022年5月1日 · Wolffia is the smallest of duckweeds, at 1 mm diameter, with reduced morphology, lacking roots as well as vasculature but retaining key anatomical features and core pathways found in other plants, making it a potential synthetic plant biology chassis.

2021年9月13日 · We reviewed the scientific literature on duckweed (Lemnaceae) and reported available information on plant biological traits, nutritional features, biomass production, and space applications, especially of the genus Wolffia. Results confirmed that the smallest existing higher plants are the best candidate for space BLSS.

It is not only the smallest but also the simplest angiosperm. The tiny ellipsoidal morphological structure of Wolffia can be summarized by the "four ones": about ONE mm in length and diameter, ONE leaf (although a growth tip and multiple branches are enclosed inside the ellipsoidal leaf), and usually only ONE stamen and ONE pistil when flowering.