Search results
Results from the WOW.Com Content Network
The scutellum is part of the structure of a barley and rice [1] seed—the modified seed leaf. The scutellum (from the Latin scutella meaning "small shield") can also refer to the equivalence of a thin cotyledon in monocots (especially members of the grass family ).
The cotyledon of grasses and many other monocotyledons is a highly modified leaf composed of a scutellum and a coleoptile. The scutellum is a tissue within the seed that is specialized to absorb stored food from the adjacent endosperm. The coleoptile is a protective cap that covers the plumule (precursor to the stem and leaves of the plant).
Ranunculus fluitans (the river water-crowfoot, [3]) is a species of buttercup. It is a perennial water plant, which when in favourable conditions (such as fast flowing water, [ 4 ] ) can grow up to 6 m (20 ft) height.
The inflorescence is a raceme about 90 cm (35 in) above water and composed of white flowers whorled by threes, blooming from July to September. [10] The flowers are about 2–4 cm ( 3 ⁄ 4 – 1 + 1 ⁄ 2 in) wide [ 10 ] and usually divided into female on the lower part and male on the upper of the plant, although some specimens are dioecious .
Ranunculus amphitrichus is an aquatic perennial, stems arising from leaf clusters and sparsely covered with soft, weak, thin hairs or smooth. The leaves are a glossy green, more or less circular, 1–10 cm (0.39–3.94 in) in diameter, lobed, sometimes floating, petiole 5–24 cm (2.0–9.4 in) long, yellow flowers on branched or simple stems 7–35 cm (2.8–13.8 in) long, usually five petals ...
A decade later, a decrease was found in water hyacinth mats by as much as 33%, but because the lifecycle of the weevils is 90 days, the use of biological predation to efficiently suppress water hyacinth growth is limited. [102] These organisms regulate water hyacinth by limiting its size, vegetative propagation, and seed production.
Phragmites australis is one of the main wetland plant species used for phytoremediation water treatment. Waste water from lavatories and greywater from kitchens is routed to an underground septic tank-like compartment where the solid waste is allowed to settle out.
Schoenoplectus acutus (syn. Scirpus acutus, Schoenoplectus lacustris, Scirpus lacustris subsp. acutus), called tule / ˈ t uː l iː /, common tule, hardstem tule, tule rush, hardstem bulrush, or viscid bulrush, is a giant species of sedge in the plant family Cyperaceae, native to freshwater marshes all over North America.