Patent Application
20130191951
Sansevieria trifasciata
Kristi
The present invention relates to a new and distinct cultivar of Sansevieria plant, botanically known as Sansevieria trifasciata, of the family Ruscaceae, hereinafter referred to by the cultivar name ‘Kristi’.
Sansevieria is a monocotyledonous and succulent, flowering plant which can be produced in either hard-leafed or soft-leafed varieties for interior use as a house plant or outdoor ornamental plant.
The new Sansevieria ‘Kristi’ originated from a naturally-occurring mutation of the Sansevieria ‘Black Gold Superba’ (unpatented). The new Sansevieria ‘Kristi’ was discovered and selected by the inventor, Marvin Gonzalez Villegas, as a single flowering plant within the progeny of the stated mutation in a controlled environment in 2005 in Monterrey, San Carlos, Alajuela province, Costa Rica.
Asexual reproduction of the new Sansevieria cultivar by vegetative cuttings was first performed in November 2005 in Monterrey, San Carlos, Alajuela, Costa Rica and has demonstrated that the combination of characteristics as herein disclosed for the new cultivar are firmly fixed and retained through successive generations of asexual reproduction. The new cultivar reproduces true to type.
The following traits have been repeatedly observed and are determined to be unique characteristics of ‘Kristi’, which in combination distinguish this Sansevieria as a new and distinct cultivar:
1. Green colored foliage with Yellow colored margins and yellow, green and pale green stripes.
2. 35 cm long, wide and lanceolate leaves supported in a rosette.
3. 25-55 cm plant height.
4. Erect Plant habit.
5. Needs little water and is very drought tolerant.
The claimed variety Kristi is considered a variety of Sansevieria in the group denominated as “compact Sansevieria plants”. The claimed variety presents an average of 5-6 leaves per plant when it reaches maturity (between 7-8 months). It has erect growth and the entire plant can reach a height range between 25-30 cm. The leaves are narrow (4.5 cm average measured at the widest part of the mature leaf) and lanceolate with a soft, waxy texture, and the blades are thin and slightly wavy. The plant has an inverted triangle shape.
The claimed variety is moderately drought tolerant, and adapts well to conditions of light and shade (interior and exterior).
The leaf blade is variegated, showing dark green color on the surface (RHS 139A), with non-uniform vertical lines in the center of the upper side of some leaves (RHS 149D). In addition, the leaves present 1.5 cm variegated margins on both sides which alternate in irregular horizontal bands of yellow (RHS 3D and RHS 2A).
Plants of the new Sansevieria ‘Kristi’ differ from plants of the parental cultivar, ‘Black Gold Superba’ (unpatented) in the characteristics described in Table 1. The variety Black Gold Superba gave rise to the var. Kristi. The Black Gold Superba variety is also considered to be part of the “compact Sansevieria” group. ‘Black Gold Superba’ shows less vigor than Kristi, less number of leaves per plant (3-4), with an average width of 6.5 cm (measured in the middle of the mature leaf) The growth habit is erect and presents wide leaves supported in a rosette. The entire plant can reach a size between 30-40 cm, and the plant has, as for Kristi, an inverted triangle shape. The leaves are lanceolate with a soft, waxy texture. The younger leaves show a green vivid coloration (RHS 134A) in the interior of the leaf blade. This area shows also irregular streaks or yellowish-green bands (RHS 142D) and the margins in both sides of the leaf are variegated with irregular horizontal bands that alternate with light yellowish green (RHS142D) broad bands and brilliant yellowish green (RHS 149A) thin bands. When the leaf is mature the deep color inside turns yellowish green (RHS 141B), while margins alternate vivid green-yellow (RHS 2A) and light-yellowish green (RHS 2C) colors.
Of the many commercial cultivars known to the present inventor, the most similar in comparison to the new Sansevieria ‘Kristi’ is the Sansevieria Black Gold Superba (unpatented), in the characteristics described above.
The accompanying photographs illustrate the overall appearance of the new Sansevieria cultivar ‘Kristi’ showing the colors as true as is reasonably possible with colored reproductions of this type. Colors in the photographs may differ slightly from the color value cited in the detailed botanical description which accurately describe the color of ‘Kristi’.
The new Sansevieria ‘Kristi’ has not been observed under all possible environmental conditions. The phenotype of the new cultivar may vary with variations in environment such as temperature, light intensity, and day length without any change in the genotype of the plant.
The aforementioned photographs, together with the following observations, measurements and values describe the new Sansevieria cultivar ‘Kristi’ as grown in an open field in Monterrey, San Carlos de Alajuela province, Costa Rica, under conditions which closely approximate those generally used in commercial practice. Average temperature in Monterrey is 24.5° C. during the day and 18° C. at night. Plants grow under natural light conditions.
This crop does not require constant fertilization, however, increasing production per area requires about 200 kg ha−1 N, 150 kg ha−1 of P and 100 kg ha−1 K. The production is closely related with soil conditions in which the plants are grown.
Color references are made to The Royal Horticultural Society Color Chart (R.H.S., April 2009). The photographs and descriptions were taken during the rainy season in Monterrey, San Carlos, Alajuela province, Costa Rica when outdoor day temperatures ranged from 23° C. The age of the plants described is 8 months.
