Alocasia macrorrhizos

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Photographs by: Dr. Maulik Gadani

  • Botanical Name : Alocasia macrorrhizos (L.) G. Don
  • Synonyms : Alocasia indica (Lour.) Schott
  • Common Name : Advi, Giant Taro, Upright Elephant Ear, Giant Ape
  • Plant Family : Arecaceae (Palmae)
  • Plant Form : Herb
  • Occurrence (Sectors) : 5, 15, 23, 28
  • Occurrence (Special Areas) : Van Chetana Kendra

About Alocasia macrorrhizos Plant :

  • Habit : Annual herb.
  • Root : Adventitious  but some may arise at the nodes.
  • Stem : Mostly rhizome but sometimes rises a considerable distance above the ground and a part may become aerial.
  • Leaves : Mostly large, entire, petiolate, more of less ovate and cordate or sagittate, parallel venation, petioles are well developed and swollen at the base, raphides are present in the cells of a leaf.
  • Inflorescence : Spadix. It is covered by a leafy bract which is called spathe. The spathe is tubular at the base and spread above. Spadix is free and shorter than spathe.
  • Flowers :
    • Sessile, bracteates, ebracteolate, incomplete, actinomorphic, hypogynous, unisexual but both male and female flowers found on the same spadix; female flowers above and male below with neutral flowers in between male and female flowers.
    • Perianth is absent.
  • Androecium : Stamens 3-5 arranged in a single whorl; the filaments are united throughout their length forming a synandrium, anthers dithecous, dehiscing by pores.
  • Gynoecium : Ovary superior, ovoid, 2-4 carpels, syncarpous, unilocular with few basal orthotropous ovules. Style short, Stigma 2-4 lobed.
  • Fruits : A red colouredberry, almost spherical, few seeded, enclosed by the accrescent tube of spathe.
  • Seeds : Black coloured, albuminous, rounded, thick smooth testa and axile embryo.
  • Significance : It is either grown for its beautiful foliage in the gardens or it is cultivated for its edible rhizomes.