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Spigelia Genuflexa
''Spigelia genuflexa'' is a species of annual plant, annual herb of the family Loganiaceae from Bahia state, Brazil, which was described in 2011. It is unusual in that the stems bend down after flowering to deposit the seeds in the soil (geocarpy). Description ''Spigelia genuflexa'' shows two growth forms. In one, inflorescences are produced after the first three pairs of leaves, when the plant is around tall; in the other, four or five pairs of leaves precede the inflorescence, by which time the plant is tall. The leaves are oppositely arranged, long and wide, and elliptic to ovate in shape. The inflorescences are composed of up to 7 flowers, and the Corolla (flower), corollas of the flowers are long. The stems are somewhat red-coloured, and have 4 to 6 prominent ribs running down from the leaf bases. Ecology ''Spigelia genuflexa'' grows in residual stands of Atlantic forest in the Rio do Negro valley in Bahia state (), at an altitude of , and about from the Atlantic Oce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Annual Plant
An annual plant is a plant that completes its life cycle, from germination to the production of seeds, within one growing season, and then dies. The length of growing seasons and period in which they take place vary according to geographical location, and may not correspond to the four traditional seasonal divisions of the year. With respect to the traditional seasons, annual plants are generally categorized into summer annuals and winter annuals. Summer annuals germinate during spring or early summer and mature by autumn of the same year. Winter annuals germinate during the autumn and mature during the spring or summer of the following calendar year. One seed-to-seed life cycle for an annual plant can occur in as little as a month in some species, though most last several months. Oilseed rapa can go from seed-to-seed in about five weeks under a bank of fluorescent lamps. This style of growing is often used in classrooms for education. Many desert annuals are therophytes, be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
