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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.
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]
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.
Eupatorium capillifolium, or dog fennel (also written "dogfennel"), is a North American perennial herbaceous plant in the family Asteraceae, native to the eastern and south-central United States. [3] It is generally between 50 cm and 2 meters tall with several stems that fork from a substantial base. [ 4 ]
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 two plants are not only similar in appearance, but also grow in similar habitats, although they may be told apart in the following manner: P. palustre has hollow, often purplish stems, pinnatifid leaf lobes and deflexed bracteoles; while S. carvifolia has solid, greenish stems, entire or sometimes lobed leaf-lobes and erecto-patent bracteoles.
Peucedanum officinale is a herbaceous perennial plant in the family Apiaceae found mainly in Central Europe and Southern Europe. [2] It is also native to the UK, where it has the common names hog's fennel [3] and sulphurweed, [4] but it is a rare plant there, occurring only in certain localities in the counties of Essex and Kent.
ZENON Environmental was a Canadian water treatment company based in Oakville, Ontario.Founded in 1980, it specialised in manufacturing ultrafiltration membranes and provided engineering support for its worldwide plants.