The plants around us. Volum II The plant around us. Volum II | Page 54

POPULUS NIGRA General description: English: Black Poplar Spanish: Álamo negro Estonian: Must pappel Portuguese: Choupo- negro Flowers Black poplar trees are dioecious (male and female flowers on separate trees). Catkins appear in late winter to early spring (March-April) before the leaves develop. Drooping male catkins (to 1- 2” long) feature apetalous flowers with deep red anthers. More upright female catkins (to 4-5” long) feature apetalous flowers with two green stigmas. It is a tree. It is 30 metrestall. The colour of the bark is grayish. Leaves The leaves are ovate heart- shaped or deltoid, large and acuminate, as long as wide, with the petiole flattened laterally and with glands at the end. Fruit It has male and female fruit, the male fruit its read and the female fruit its green.