Because the plant is new to science and the possible harvesting by local populations, the conservation status of " Dioscorea orangeana " is of great concern.
32.
Yam, a tropical crop in the genus " Dioscorea ", has as many as 600 species out of which six are economically important staple species.
33.
The larvae have been reported feeding on the foliage of " Dioscorea oppositifolia ", " Convolvulus " and " Erythrina " species.
34.
A : The air potato, " Dioscorea bulbifera, " native to the tropics, is a fast-growing vine with large, spade-shaped leaves.
35.
"' Yam "'is the common name for some plant species in the genus " Dioscorea " ( family Dioscoreaceae ) that form edible tubers.
36.
The tuber is possibly edible, and unlike most other " Dioscorea " species, the tuber has many finger-like lobes as opposed to a single tuber.
37.
It is also threatened by introduced species of plants such as " Lonicera japonica ", " Dioscorea oppositifolia " and " Microstegium vimineum ".
38.
Much of its forest habitat has been lost to residential and air potato ( " Dioscorea bulbifera " ), which form a thick groundcover that chokes out native plants.
39.
"Dioscorea juxtlahuacensis " is a perennial vine spreading by means of underground rhizomes, trailing on the ground or twining onto other vegetation up to 60 cm above ground.
40.
It was first isolated from " Dioscorea hirsute " ( synonymous with Dioscorea hirsuta ) by Boorsma in 1894, and obtained in a crystalline form by Schutte in 1897.
