Patent Publication Number: US-PP34431-P3

Title: Sansevieria plant named ‘OSV Sans 012’

Description:
Botanical classification:  Sansevieria  sp. 
     Varietal denomination: ‘OSV Sans 012’. 
     BACKGROUND OF THE INVENTION 
     The present invention comprises a new and distinct variety of  Sansevieria  plant having the varietal name of ‘OSV Sans 012’ and commercially referred to as “Emerald Star”. The new variety was discovered and selected by the breeder in a cultivated production bed environment in Williamsburg, Costa Rica as a naturally occurring mutation amongst a population of unpatented and unnamed  Sansevieria  plants. As such, the exact parentage is unknown. The new variety was selected and first asexually reproduced by rhizome cuttings in Williamsburg, Costa Rica. ‘OSV Sans 012’ has been trial and field tested and has been found to retain its distinctive characteristics and remain true to type through successive propagations. The present invention has not been evaluated under all possible environmental conditions. The phenotype may vary with variations in environment without a change in the genotype of the plant. 
     When compared to  Sansevieria  variety named ‘OSV Sans 011’ (U.S. Plant patent application Ser. No. 17/495,872), the new variety exhibits a similar solid leaf coloration that is primarily dark green with thin, yellow-colored leaf margins. However, ‘OSV Sans 012’ differs from ‘OSV Sans 011’ in having thinner margin coloration and exhibiting some ribbed coloration on the lower leaf surface. Further, the following characteristics distinguish ‘OSV Sans 012’ from other  Sansevieria  varieties known to the breeder:
         Rosette leaf formation;   Thin leaf margins of yellow coloration;   Predominately dark green leaf coloration on the upper leaf surface; and   Ribbed leaf coloration on the lower leaf surface.       

    
    
     
       DESCRIPTION OF THE DRAWING 
       The accompanying photographic drawing taken at approximately 18 weeks of age illustrates the new variety, with the colors being as nearly true as is possible with color illustrations of this type. 
     
    
    
     DESCRIPTION OF THE PLANT 
     The following detailed description sets forth the characteristics of the new variety at approximately 2 years of age. The data which defines these characteristics was collected in a greenhouse in September of 2021 in Winter Garden, Fla. Plants of the new variety were grown under 2,000 foot candles of artificial light in 15 cm pots in a climate-controlled greenhouse in Winter Garden, Fla. having 86% relative humidity and an average temperature of 28° C. Color references are primarily to the Munsell Plant Tissue Color Book, 2019 publication, except where general color terms are used. 
     PLANT 
     
         
         Time to initiate roots: About 12 days at an average of 23° C. night temperatures and 30° C. day temperatures. 
         Time to develop roots: About 21 days at an average of 23° C. night temperatures and 30° C. day temperatures. 
         Time to produce a finished plant from a rooted cutting: About 8 weeks in a 15 cm container. 
         Rooting habit and description: Hair-like roots spread out and wrap at the base. 
         Form: Spreading. 
         Height from media surface to top of foliage: 15.2 cm. 
         Plant diameter: 27.4 cm. 
         Plant shape: Rosette, having a circular arrangement of the leaves. 
         Vigor: Strong. 
         Strength: Rigid, with no need for artificial support. 
         Disease resistance/susceptibility: Nothing specific noted to date. 
         Pest resistance/susceptibility: Resistant to thrips and aphids. 
         Temperature tolerance: Sensitive to temperatures below 7° C. or above 38° C. 
         Drought tolerance: Very tolerant due to the ability of the leaves to retain water. 
         Flowers: None observed to date. 
         Seeds/fruit: None present. 
         Stem:
             Length.— 1.9 cm.     Diameter.— 1.3 cm.     Shape .—Vertical column     Color.— 2.5GY 8/2.     Texture .—Coriaceous and glabrous.     Strength .—Sturdy and rigid.     Internode length .—Not applicable.       
     
         Leaves:
             Arrangement .—Basal rosette.     Average number per plant.— 19.     Length.— 15.2 cm.     Width.— 5.7 cm.     Shape of leaf  ( generally ).—Gladiate.     Shape of apex .—Apiculate.     Shape of base .—Cuneate.     Margin description .—Entire.     Aspect .—Mostly erect, arching outwardly to about 75°.     Texture and luster .—Upper surface: Coriaceous and glabrous. Lower surface: Coriaceous and glabrous.     Pubescence .—Upper surface: None present. Lower surface: None present.     Fragrance .—None present.     Color .—Young leaves: Upper surface: Thin 5Y 8/6 margins; 7.5GY 3/2 center portion. Lower surface: 5Y 8/6 margins; center portion is ribbed in color and alternates between 5GY 5/6 and 7.5GY 4/6. Mature leaves: Upper surface: 5Y 8/6 margins; main portion is solid 7.5GY 3/2 that fades into 7.5GY 6/2 near the center of the plant. Lower surface: 5Y 8/6 margins; 5Y 8/6 at base; center portion is 2.5GY 7/8 that fades upward into 5GY 4/6 and 5GY 3/4.     Veins .—Venation pattern: Parallel. Color: Upper surface: 7.5GY 3/2. Lower surface: Alternates between 5GY 5/6 and 7.5GY 4/6.       
     
         Sheath:
             Length.— 1.5 cm.     Width.— 3.2 cm.     Color.— 2.5GY 8/2.     Texture .—Coriaceous and glabrous.