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The NASA Clean Air Study determined that the species modestum of this plant genus was effective at removing common household air toxins formaldehyde and benzene. Aglaonema plants are poisonous due to calcium oxalate crystals. If ingested they cause irritation of the mucous membranes, and the juice can cause skin irritation and painful rash. [10]
Temperature is not critical, the range being from 10 to 32 °C (50 to 90 °F). Frost hardiness depends on the species. T. usneoides, for example, can tolerate night-time frosts down to about −10 °C (14 °F). For most species, the ideal growth temperature is between 20 and 25 °C (68 and 77 °F), with a minimum of 10 °C (50 °F) and a ...
Italian composer Giacomo Puccini wrote Crisantemi (1890), a movement for string quartet, in memory of his friend Amedeo di Savoia Duca d'Aosta. In Italy (and other European countries) the chrysanthemum is the flower that people traditionally bring to their deceased loved ones at the cemetery and is generally associated with mourning.
[10] The puspa langka ("rare flower") is padma raksasa rafflesia ( Rafflesia arnoldii ). All three were chosen on World Environment Day in 1990, [ 13 ] and enforced by law through Presidential Decree ( Keputusan Presiden ) No. 4 1993, [ 14 ] On the other occasion, bunga bangkai ( Titan arum ) was also added as puspa langka together with rafflesia .
[10] [3] The leaves of P. alba are narrow and corrugated, whereas leaves of P. pudica have an elongated shape and glossy, dark-green color. P. pudica is one of the everblooming types with nondeciduous, evergreen leaves. Another, semi-deciduous species that retains leaves and flowers in winter is P. obtusa; commonly known as "Singapore plumeria ...
The lotus is often confused with the true water lilies of the genus Nymphaea, in particular N. caerulea, the "blue lotus."In fact, several older systems, such as the Bentham & Hooker system (which is widely used in the Indian subcontinent), refer to the lotus by its old synonym, Nymphaea nelumbo.
The first European to find Rafflesia was the ill-fated French explorer Louis Auguste Deschamps.He was a member of a French scientific expedition to Asia and the Pacific, detained by the Dutch for three years on the Indonesian island of Java, where, in 1797, he collected a specimen, which was probably what is now known as R. patma.
Calathea is a genus of flowering plants belonging to the family Marantaceae.They are commonly called calatheas or (like their relatives) prayer plants.About 200 species formerly assigned to Calathea are now in the genus Goeppertia. [1]