Stamp: Green dahlias (Dahlia variabilis Desf.) (Vietnam 1982)
Green dahlias (Dahlia variabilis Desf.) (Vietnam 1982)
15 July (Vietnam ) within release Dahlia goes into circulation Stamp Green dahlias (Dahlia variabilis Desf.) face value 1 Vietnamese đồng
| Stamp Green dahlias (Dahlia variabilis Desf.) in catalogues | |
|---|---|
| Michel: | Mi: VN 1247U |
Stamp is square format.
Also in the issue Dahlia:
- Stamp - Red Dahlia face value 30;
- Stamp - Orange Dahlia face value 30;
- Stamp - Rosa Lotus-Dahlia face value 40;
- Stamp - White dahlias (Dahlia variabilis Desf.) face value 1;
- Stamp - Red decorative dahlias (Dahlia variabilis Desf.) face value 50;
- Stamp - Orange Dahlia face value 30;
- Stamp - Yellow dahlias (Dahlia variabilis Desf.) face value 50;
- Stamp - Red Dahlia face value 30;
- Stamp - Red single dahlias (Dahlia variabilis Desf.) face value 60;
- Stamp - Rosa Lotus-Dahlia face value 40;
- Stamp - Green dahlias (Dahlia variabilis Desf.) face value 1;
Stamp Green dahlias (Dahlia variabilis Desf.) it reflects the thematic directions:
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in plants that are floral (plants of the division Magnoliophyta, also called angiosperms). The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a population) or allow selfing (fusion of sperm and egg from the same flower). Some flowers produce diaspores without fertilization (parthenocarpy). Flowers contain sporangia and are the site where gametophytes develop. Many flowers have evolved to be attractive to animals, so as to cause them to be vectors for the transfer of pollen. After fertilization, the ovary of the flower develops into fruit containing seeds. In addition to facilitating the reproduction of flowering plants, flowers have long been admired and used by humans to beautify their environment, and also as objects of romance, ritual, religion, medicine and as a source of food.
