Close-up of the flower head of couch grass,Agropyron repens,a common and tenacious garden and arable weed,closely related to cultivated wheat. The flower head is composed of a number of florets,each comprising two white,feathery stigmas (the tips of the female reproductive organs) and three yellow,pollen-bearing anthers (the male reproductive organs). At the base of each floret is an ovule which,after fertilisation,will develop into a seed or grain | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Burgess, Dr. Jeremy |
Bildgröße: | 2301 px × 3562 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |