Maggots (larvae of Rhagoletis completa and Rhagoletis suavis) in the husk are common, though more a nuisance than a serious problem for amateurs, who may simply remove the affected husk as soon as infestation is noticed.
It contains one of the oldest Ginkgo biloba trees in Europe, as well as mature specimens of Firmiana platanifolia, Juglans nigra, Pterocarya fraxinifolia, and Tilia.
Sambucus nigra | Centaurea nigra | Pinus nigra | Juglans nigra | Fraxinus nigra | Carex nigra | Brassica nigra | Populus nigra | Juglans | Tinea nigra | Prosopis nigra | Porta Nigra | ''Populus nigra'', originating in the United States from plantings by André Michaux | M. nigra | Mined leaf of ''Centaurea nigra | Leaf of ''Ballota nigra | Juglans californica | Juglans australis | Hoplocorypha nigra | Gila nigra | Betula nigra | A shoot of ''Centaurea nigra |