Ramtilla/Niger

Ramtilla/Niger

Scientific name: Guizotia abyssinica Cass.

Bangla/local name: ‘Guzi Teel’

Taxonomic Position according to Cronquist (1981)

Kingdom        : Plantae

Division          : Magnoliophyta

Class               : Magnoliopsida

Subclass          : Asteridae

Order              : Asterales

Family             : Asterceae

Genus              : Guizotia

Species            : G. abyssinica

Botanical Description of Ramtilla

Habit: Annual herb, pubescent

Root: Tap roots.

Stem: Erect or prostate

Leaf: Simple sessile

Flower: Inflorescence head or capitulate

Involucre bract: The head or capitulum are surrounded by a whorl of bracts called the involecre thus producing a flower cluster resembling a single flower.

Fruit: Cypsela

Chromosome: 2n=30

Economic Importance: Edible oil, used as cosmetic also.

Table 1. Niger Variety Developed by Oil Seed Research Center, BARI, Joydebpur, Bangladesh