Arrojadoa
From Biocrawler, the free encyclopedia.
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The genus Arrojadoa comprises about 10 species and several varieties of cactus. It is named after the Brazilian Miguel Arrojado Lisboa.
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Description
Species of this genus often have frail stalks that can be upright or procumbent, reaching 2 m high and about 2 to 5 cm thick. There are from 10 to 15 ribs, and ramifications are rare, and usually occur from the base.
Flowers are nocturnal and tube-like, measuring 1 to 3 cm in length and 0.5 to 1 cm in diameter. Flower colors can be pink or carmin. Fruits are nude, berry-like, spherical of a maximal diameter of 1.5 cm, and pink or red when ripe.
Distribution
This genus lives only in Northern Brazil. It is found growing at rocky places, under shrubs, that support their frail stalk. These plants are subtropical ones, with very few frost tolerance.
Cultivation
The plant is easy to cultivate and flowers prolifically. It multiplies either by seed or by cuttings. It grows best on slightly humid soil and with plenty of watering from spring to autumn. In winter it should be left without water and at a minimal temperature of 10°C.
Species
- A. albiflora
- A. bahiensis
- A. dinae (varieties include: eriocaulis, also called A. beateae)
- A. marylanae
- A. penicillata
- A. nova
- A. rhodantha (subspecies are aureispina and rhodantha. This latter is sometimes called A. canudosensis)
