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Fennel (Foeniculum vulgare) is a flowering plant species in the carrot family. [1] [2] It is a hardy, perennial herb [3] with yellow flowers and feathery leaves. [4]It is indigenous to the shores of the Mediterranean but has become widely naturalized in many parts of the world, especially on dry soils near the sea coast and on riverbanks.
Activated sludge tank at Beckton sewage treatment plant, UK.The white bubbles are due to the diffused air aeration system. The activated sludge process is a type of biological wastewater treatment process for treating sewage or industrial wastewaters using aeration and a biological floc composed of bacteria and protozoa.
The genus name Nigella is a diminutive of the Latin niger "black", referring to the seed color. [6] [7] The specific epithet sativa means "cultivated".[6]In English, Nigella sativa and its seed are variously called black caraway, black seed, black cumin, fennel flower, nigella, nutmeg flower, Roman coriander, [3] [6] black onion seed [8] and kalonji.
The word for fenugreek in Amharic is abesh (or abish), and the seed is used in Ethiopia as a natural herbal medicine in the treatment of diabetes. [19] Yemenite Jews following the interpretation of Rabbi Shelomo Yitzchak (Rashi) believe fenugreek, which they call hilbah, hilbeh, hilba, helba, or halba "חילבה", to be the Talmudic rubia.
Stuckenia pectinata is a fully submerged aquatic plant and does not have any floating or emerged leaves. [2] The flowers are wind pollinated and the seeds float. Tubers that are rich in starch are formed on the rhizomes. Reproduction can either be vegetative with tubers and plant fragments or sexual with seeds. [3]
Sewage treatment plant (a type of wastewater treatment plant) in La Crosse, Wisconsin. Wastewater treatment is a process which removes and eliminates contaminants from wastewater. It thus converts it into an effluent that can be returned to the water cycle. Once back in the water cycle, the effluent creates an acceptable impact on the environment.
Foeniculum is a genus of flowering plants in the carrot family. It includes the commonly cultivated fennel, Foeniculum vulgare. Species [2] [3] Foeniculum scoparium Quézel - North Africa [4] Foeniculum subinodorum Maire, Weiller & Wilczek - North Africa [5] Foeniculum vulgare Mill. - Mediterranean, cultivated and naturalized in many regions [6]
Plant nutrition is the study of the chemical elements and compounds necessary for plant growth and reproduction, plant metabolism and their external supply. In its absence the plant is unable to complete a normal life cycle, or that the element is part of some essential plant constituent or metabolite .