The natural frame of the Hasmas massif, with its varied geologic, geomorphologic, pedologic and climactic elements, its microclimactic conditions determined by the exposure and bend of slopes , the great level difference ( from 575 m in the valley of the Bicaz at Bicaz Chei, to 1792 m at the top of the Hasmasu Mare ) determine the existence of a rich and diverse flora and fauna.
As a result of field investigation and according to extant bibliographic data, 1147 superior plant species have been inventaried ( 29 hibrids and 99 subspecies )
The PNCB - H has spruce forests ( pure spruce forests - 95% ) resinous forests with beech on the mountain slopes, vaste montaneous pastures , peaks with sub - alpine vegetation , rocky parts with specific vegetation , many rare and endemic flowers.
Specific to this region is the local endemic plant Astragalus.pseudopurpureus ( gusul )
Many rare species can be seen here, among which are: the juniper( Juniperus sabina ) the pyramidal bugle ( Ajuga pyramidalis ) , the low tufted perennial Silene zawadzkii, the Geum - like - barren strawberry ( Waldsteinia geoides ) and the rose Daphne ( Daphne cneorum ).
Of a great scientific importance are the law - protected plants, declared monuments of nature:the Yellow Lady's Slipper( Cypripedium calceolus ), the Edelweis ( Leontopodium alpinum ) the Nigritella rubra ( orchidacee ) and the yew ( Taxus baccata )
The fauna of the park is very rich in rare and endangered species and also in other species characteristic for the mountain region.
Here are some of these rare species , which are important links of a rich trophic network, pointing towards a still well - balanced echosystem. : the Apollo butterfly ( Parnassius apollo )and the Polygonia alba. There are also amphibians and reptiles , such as Bombina variegata ( the yellow bellied toad ), Rana ridibunda ( the lake frog ) Triturus alpestris ( the Alpine newt ) , Triturus cristatus ( the crested newt ) , the Triturus montadoni ( the carpathian newt ) , the Salamandra salamandra ( salamander ) , the Bufo bufo ( the toad ) , the Rana temporaria ( the common frog ) the Lacerta vivipara ( the viviparous lizard ), the Vipera berus ( common viper ), the Coronella austriaca ( the smooth snake ). There are also birds such as Tichodroma muraria ( the wallcreeper ), Picoides tridactylus ( the woodpecker ) , Emberiza cia ( the rock Bunting ), Corvus corax ( common raven ) Tetrao urogallus ( Old World grouse ), Strix uralensis ( the Ural owl ) Aquila chrysaetos ( the golden eagle ).
There can be found also some mammals in the region: Cervus elaphus ( the red deer ) Rupicapra rupicapra ( the wild alpine goat ) Ursus arctos ( the bear ) Lynx lynx ( lynx ) and Canis lupus ( the wolf )