Hadce u Dobročkova, Nature reserve in Ktiš, Czech Republic.

Hadce u Dobročkova is a protected nature reserve near Ktiš featuring grasslands on serpentinite substrates. The area spans pastures along slopes above the Křemžský stream and sits at elevations ranging from 620 to 670 meters.

The area was part of the Dobročkovské hadce reserve from 1992, as one of two separate plots. The part lying outside the Blanský les protected landscape area was declared a separate reserve by the South Bohemian Regional Office, effective 2 January 2014.

The name Hadce refers to serpentinite soils, hadce in Czech. Farming ceased and alder and bird cherry spread until the reserve was declared; since then the meadows have been mown and grazed ecologically. The target species is the Czech endemic gentian Gentianella praecox subsp. bohemica, flowering in fluctuating numbers of hundreds to thousands.

A marked cycling route, no. 1139, runs along the road II/166 near the eastern boundary. A field track from Dobročkov follows the western and southern edges. The reserve lies at 630–675 m, so expect cold winters and snow cover for 60–100 days a year.

The bog fritillary butterfly (Proclossiana eunomia) was recorded here on the meadows, and the reserve was its easternmost known site in the Czech Republic. The stream also holds a viable population of brook lamprey (Lampetra planeri).