HOME      •      SEARCH      •      EMAIL    •     ABOUT


Family Dracaenaceae
Espada
Sansevieria cylindrica Bojer
SPEAR PLANT

Scientific names Common names
Sansevieria cylindrica Bojer ex Hook. Espada (Tag.)
Acyntha cylindrica (Bojer ex Hook.) Kuntze Bow string hemp (Engl.)
Cordyline cylindrica (Bojer ex Hook.) Britton Cylindrical snake plant (Engl.)
Sansevieria angolensis Welw. ex Carriere Spear plant (Engl.)
Sansevieria cylindrica Bojer ex Hook. Spear sansevieria (Engl.)
  Snake plant (Engl.)
Sansevieria cylindrica Bojer ex Hook. is an accepted name The Plant List

Botany
Espada is a cylindrical, succulent perennial herb. Leaves are are green, swordlike, cylindrical and rigid, furrowed or grooved along its entire length, with pointed tips, sometimes with a dark green striped pattern, growing to a height of 2 feet or more, up to about 3 centimeters thick. Flowers are very small, white, fragrant, and crowded in small inflorescences (cymes), greenish or tinged with red, blooming once a year.

Distribution
- Recently introduced to the Philippines.
- Planted as an ornamental.
- Native to Nepal and South Africa.

Constituents
- Microstructural analysis of leaves of S. cylindrica showed the presence of structural fibers and arch fibres. (4)

Properties
- Study of Sanseveria cylindrica showed the flexural modulus of Sanseveria cylindrica fiber composite is much higher than those of jute or silk fiber composites. (see study below) (3)
- Considered diuretic, laxative, anthelmintic, antirheumatic.

Uses
Folkloric
- No known folkloric medicinal use in the Philippines.

Studies
Steroidal Saponin / Inhibition of Capillary Permeability:
Study yielded a new steroidal saponin from the leaves of Sansevieria cylindrica. The saponin showed no haemolytic effects in the in vitro assays and demonstrated inhibition of the capillary permeability activity. (1)
Air Cleaning Plant: Sanseveria species are believed to have air purifying properties, removing indoor toxins like formaldehyde, xylene, toluene.
Natural Fiber / Potential Commercial Applications:
Study evaluated the tensile, flexural and dielectric properties of composites made by reinforcing Sanseveria cylindrica as a new natural fiber into a rubber based polyester matrix. Results showed Sanseveria cylindrica with a unique dielectric strength with potential for electrical insulation applications, in addition to fabrication of lightweight materials in automobile building, packaging industry, partition panes, etc. (3)
Hybrid Fibers:
Study reports on use of hybrid fibers such as Sanseveria cylindrica and tamarind fruit fibers to reinforce the epoxy matrix on mechanical and thermal properties. Epoxy filled with Tf and Sc showed remarkable improved in flexural strength and modulus. Hybrid reinforcement of filler in polymer shows significant improvement in dielectric strength of composites. (4)


Availability

Ornamental cultivation.

Last Updated November 2014

Photos © Godofredo Stuart / StuartXchange

Additional Sources and Suggested Readings
(1)
A new bioactive steroidal saponin from Sansevieria cylindrica / Alexandra da Silva Antunes et al / Phytotherapy Research.Volume 17, Issue 2 , Pages 179 - 182

(2)
Sansevieria cylindrica Bojer ex Hook. is an accepted name / The Plant List
(3)
Fabrication and performance of natural fibers: Sansevieria cylindrica, waste silk, jute and drumstick vegetable fibres (Moringa Oleifera) reinforced with rubber/polyester composites / M. ASHOK KUMAR*, G. RAMACHANDRA REDDY, K.R.VISHNU MAHESH, THIMMAPURAM HEMANTH BABU, G.VASANTH KUMAR REDDY, H.DASARATHA AND Y.V.MOHANA REDDY / International Journal of Fiber and Textile Research 2011; 1(1): 15-21
(4)
Biodegradable Sansevieria cylindrica Leaves fiber/ Tamarind fruit fiber based Polymer hybrid composites on characterization / G. Ramachandra Reddy, Mala Ashok Kumar,* Jarugala Jayaramudu / International Letters of Chemistry, Physics and Astronomy, 20(2) (2014) 116-128

It is not uncommon for links on studies/sources to change. Copying and pasting the information on the search window or using the DOI (if available) will often redirect to the new link page.

HOME      •      SEARCH      •      EMAIL