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Wolffia arrhiza was first described in 1771 by L. as Lemna arrhiza to the genus Lemna known for several duckweed species. It was transferred to the current genus Wolffia in the 19th century based on works of Johann Horkel and the third edition of the Flora von Schlesien preußischen und österreichischen Antheils by Christian Friedrich Heinrich Wimmer in 1857.
It thrives in hot, humid weather but not extended periods of direct sunlight. If the plant withers due to lack of water, it tends to recover quickly after rain or watering. Although rare, the seed-producing flowers are very fragrant and blossom in late autumn. The tiny seeds may be harvested for planting, but they are very delicate and easily ...
Monocarpic plants are those that flower and set seeds only once, and then die. The term is derived from Greek (mono, "single" + karpos, "fruit" or "grain"), and was first used by Alphonse de Candolle. Other terms with the same meaning are hapaxanth and semelparous.
In China, food delivery services include DiDi (the dominant ride-hailing company in China),and Alibaba-acquired Ele.me; and Tencent-backed Meituan. Users can order restaurant food, supermarket products, vegetables and fruit, cakes and flowers for delivery on these platforms [32]. China's food delivery market is expected to cross $21 billion in ...
Trillium grandiflorum in the foreground and the smaller Thalictrum thalictroides in the background are both spring ephemerals of North American deciduous forests. An ephemeral plant is a plant with a very short life cycle or very short period of active growth, often one that grows only during brief periods when conditions are favorable.
A spike, usually pendulous, in which the mostly small flower s are unisexual and without a conspicuous perianth, e.g. in willows, poplars, oaks, and casuarinas. The individual flowers often have scaly bract s and are generally wind-pollinated. Catkins are usually shed as a unit. caudate Having a narrow, tail-like appendage or tip, e.g. a drip tip.
Wolffia are free-floating aquatic plants with fronds that are nearly spherical to cylindrical in shape and lack airspaces or veins. [1] [3] They do not have roots. [1]Their rarely seen flowers originate from a cavity on the upper surface of the frond, and each flower has one stamen and one pistil.
Hibiscus (also known in Sri Lanka as shoe flower, සපත්තු මල, වද මල in Sinhalese) is an ingredient with a rich heritage of refreshing Lankans. Fresh juices, ice teas and syrups made of the Hibiscus flower are famous refreshments among Sri Lankans.