The contribution is focused upon detail production-ecological analysis of the total herb layer biomass (aboveground-belowground-total) in the broad-leaved forest ecosystems of the Žalostínska vrchovina upland (the westernmost part of the Biele Karpaty Mts) and Zámčisko (the only forested part of the Chvojnická pahorkatina hilly country). There were sampled all major vegetation types: Stellario-Alnetum, Hacquetio-Carpinetum, Carici pilosae-Carpinetum typicum, Carici-Carpinetum melicetosum uniflorae, Carici-Carpinetum type with Mercurialis perennis and Carici pilosae-Fagetum. Results (Table 1) are discussed and compared with those obtained from similar forest ecosystems of  western Slovakia (Table 2).