FFF397 - FRIAR'S COWL

Arisarum vulgare, common name Cobra Plant, Friar's Cowl or Larus, is a herbaceous, perennial, with an underground rhizome plant in the genus Arisarum belonging to the family Araceae. Arisarum vulgare reaches on average 10–30 cm high. The leaves of this geophyte plant are basal only, wide, ovate to arrow-shaped, with a petiole 12–15 cm long. The stems are erect and unbranched, usually mottled and grow directly from the underground rhizome. 

A single leaflike bract (spathe) forms a purplish-brown or olive green striped tube about 15 cm long, with an open upper part helmet or hood-shaped curved forward. It encloses a fleshy greenish club-like spike (spadix) bent forward, protruding from the tube and bearing at the bottom minute purple violet flowers. The 20 male flowers are located above the four to six female, with sterile flowers completely missing.

The flowering period extends from Autumn to Spring. The sexes are united in the same individual plant. Pollination is granted by insects (entomophily). The fruits are greenish berries of about 1 centimetre long. This plant native to Mediterranean region of southern Europe and northern Africa, east to the Caucasus, and west to the Canary Islands, the Azores and Madeira.

Arisarum vulgare prefers grassy fields and rocky scrubland, forests and wasteland, mainly in shady and cool places and in moist soils, at an altitude of 0–800 metres above sea level. Grow this cautiously in the garden as it can become quite invasive.

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FFF267 - PINK CALLA LILY

Zantedeschia is a genus of herbaceous flowering plants in the family Araceae, native to southern Africa from South Africa north to Malawi. The name of the genus was given as a tribute to Italian botanist Giovanni Zantedeschi (1773–1846) by the German botanist Kurt Sprengel (1766–1833). Common names include arum lily for Z. aethiopica, calla, and calla lily for Z. elliottiana and Z. rehmannii although it is neither a true lily (Liliaceae), nor Arum or Calla (related genera in Araceae). It is also often erroneously spelled as "cala lily". It has often been used in many paintings, and is visible in many of Diego Rivera's works of art (see The Flower Vendor, amongst others).

The Zantedeschias are rhizomatous herbaceous perennial plants growing to 1-2.5 m tall with leaves 15–45 cm long. The inflorescence is a showy white, yellow or pink spathe shaped like a funnel with a yellow, central, finger-like spadix. The Zantedeschia species are poisonous due to the presence of calcium oxalate. All parts of the plant are toxic, and produce irritation and swelling of the mouth and throat, acute vomiting and diarrhoea. However, in some countries the leaves are sometimes cooked and eaten after suitable preparation.

Zantedeschia rehmannii Pink Calla Lily, shown here, has charming, funnel-shaped blooms that may be pink, rose, lavender or violet. It is a smaller plant (growing up to 40 cm) than the white or yellow varieties. Its long, tapered leaves are deep green, often with faint white spots.

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FFF252 - DIEFFENBACHIA

Dieffenbachia is a genus of tropical flowering plants in the family Araceae. It is native to the New World Tropics from Mexico and the West Indies south to Argentina. It is widely cultivated as an ornamental, especially as a house plant, and has become naturalised on a few tropical islands. Dieffenbachia prefers medium sunlight, moderately dry soil and average home temperatures of 17–27 °C. Indoors it should be watered about twice a week.

Dieffenbachia is a perennial herbaceous plant with straight stem, simple and alternate leaves containing white spots and flecks, making it attractive as indoor foliage. Species in this genus are popular as houseplants because of their tolerance of shade. The flowers are green/white and have the typical spathe of arums. The common name, "dumb canes" refers to the poisoning effect of raphides, which can cause temporary inability to speak.

Dieffenbachia was named by Heinrich Wilhelm Schott, director of the Botanical Gardens in Vienna to honour his head gardener Joseph Dieffenbach (1796–1863).

With a minimum temperature tolerance of +5 °C, Dieffenbachia must be grown indoors in temperate areas. They need light, but filtered sunlight through a window is usually sufficient. They also need moderately moist soil, which should be regularly fertilised with a proprietary houseplant fertiliser. Leaves will periodically roll up and fall off to make way for new leaves. Yellowing of the leaves is generally a sign of problematic conditions, such as a nutrient deficiency in the soil. Dieffenbachia respond well to hot temperatures and dry climates.

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FFF179 - ANTHURIUM

Anthurium (Schott, 1829), is a genus of about 1000 species of flowering plants, the largest genus of the arum family, Araceae. General common names include anthurium, tailflower, flamingo flower, and laceleaf. The genus is native to the Americas, where it is distributed from northern Mexico to northern Argentina and parts of the Caribbean.

Anthurium often grow as epiphytes on other plants. Some are terrestrial. The leaves are often clustered and are variable in shape. The inflorescence bears small flowers which are perfect, containing male and female structures. The flowers are contained in dense spirals on the spadix. The spadix is often elongated into a spike shape, but it can be globe-shaped or club-shaped. Beneath the spadix is the spathe, a type of bract. This is variable in shape, as well, but it is lance-shaped in many species. It may extend out flat or in a curve. Sometimes it covers the spadix like a hood.

The fruits develop from the flowers on the spadix. They are juicy berries varying in colour, usually containing two seeds. The spadix and spathe are a main focus of Anthuirium breeders, who develop cultivars in bright colors and unique shapes. Anthurium scherzerianum and A. andraeanum, two of the most common taxa in cultivation, are the only species that grow bright red spathes. They have also been bred to produce spathes in many other colours and patterns.

Anthurium plants are poisonous due to calcium oxalate crystals. The sap is irritating to the skin and eyes. Like other aroids, many species of Anthurium can be grown as houseplants, or outdoors in mild climates in shady spots. They thrive in moist soils with high organic matter. In milder climates the plants can be grown in pots of soil. Indoors plants thrive at temperatures between 16°C-22°C and at lower light than other house plants. Wiping the leaves off with water will remove any dust and insects. Plant in pots with good root systems will benefit from a weak fertiliSer solution every other week. In the case of vining or climbing Anthuriums, the plants benefit from being provided with a totem to climb.

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FFF75 - ANTHURIUM

Anthurium (Schott, 1829), is a large genus of about 600–800 (possibly 1,000) species of flowering plants, belonging to the arum family (Araceae). Anthurium can also be called "flamingo flower" or "boy flower", both referring to the structure of the spathe and spadix.

The Anthurium was discovered in 1876 in Colombia. TROPICOS lists 1901 types, although some of these are duplicates. It is one of the largest and probably the most complex genera of this family; certainly it is one of the most variable. Many species are undoubtedly not yet described and new ones are being found every year.

The genus has neotropical distribution; mostly in wet tropical mountain forest of Central and South America, but some in semi-arid environments. Most species occur in Panama, Colombia, Brazil, the Guiana Shield and Ecuador. According to the work of noted aroid botanist Dr. Tom Croat of the Missouri Botanical Garden, no members of this genus are indigenous to Asia. Deliberately or accidentally, however, some species have been introduced into Asian rain forests, and have become established there as aliens.

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