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Rhizophora is a genus of tropical mangrove trees, sometimes collectively called true mangroves. The most notable species is the red mangrove (Rhizophora mangle) but some other species and a few natural hybrids are known. Rhizophora species generally live in intertidal zones which are inundated daily by the ocean.
Ceanothus americanus is a shrub that lives up to fifteen years and growing between 18 and 42 in (0.5 and 1 m) high, having many thin branches.Its root system is thick with fibrous root hairs close to the surface, but with stout, burlish, woody roots that reach deep into the earth—root systems may grow very large in the wild, to compensate after repeated exposures to wildfires.
Its viviparous "seeds", in actuality called propagules, become fully mature plants before dropping off the parent tree. [3] These are dispersed by water until eventually embedding in the shallows. Rhizophora mangle grows on aerial prop roots, which arch above the water level, giving stands of this tree the characteristic "mangrove" appearance ...
Skeins of yarn dyed with madder root, Rubia tinctorum. Rubia was an economically important source of a red pigment in many regions of Asia, Europe and Africa. [3] The genus name Rubia derives from the Latin ruber meaning "red". The plant's roots contain an anthracene compound called alizarin that gives its red colour to a textile dye known as ...
The pulverised roots can be dissolved in sulfuric acid, which leaves a dye called garance (the French name for madder) after drying. Another method of increasing the yield consisted of dissolving the roots in sulfuric acid after they had been used for dyeing. This produces a dye called garanceux. By treating the pulverized roots with alcohol ...
A common source of red dye dating back 4,000 years, madder doesn’t produce the reddest red (that award goes to dyes made from insects, including cochineal and kermes), but it still prompted ...
The correct environment of air, mineral nutrients and water directs plant roots to grow in any direction to meet the plant's needs. Roots will shy or shrink away from dry [22] or other poor soil conditions. Gravitropism directs roots to grow downward at germination, the growth mechanism of plants that also causes the shoot to grow upward. [23]
Wachendorfia thyrsiflora, the marsh butterfly lily, [1] is a plant species of 0.6–2.5 m (2.0–8.2 ft) high when flowering, that has been assigned to the bloodroot family. [2] It is a large to very large evergreen perennial plant with an underground rootstock with clusters of roots produced at the nodes. The rootstock has a distinctive red ...