The Rennweghohle is a ravine and nature reserve on the Hohberg (218 m) north of Zeutern, a district of Ubstadt-Weiher and about 670m long.
The Rennweghohle is part of the 8-part nature reserve at the Red Cross (NSG 2.087), which has been designated since November 27, 1985.
The nature reserve has an area of 36 hectares.
The greater part of the protected area consists of spatially separated semi-arid grassland and also includes a small forest area.
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The main protection purpose of the nature reserve is the preservation of typical parts of the landscape of the Kraichgau loess landscape, consisting of terraces with steep, dry and hot loess slopes, rain areas, sunken paths, semi-arid grassland and wetlands, as well as the animal and plant communities characteristic of this area.
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In addition to the orchids and gentians, which are quite typical of the semi-arid grassland, the largest occurrence of the forest anemone in the region can be found here - some of which are still often flat stands. The occurrence of the common pasque flower, which was considered common here in the past, is in decline and only limited to one location.
Moss and lichen communities on the vertical, bare flanks of the loess cave paths are of particular interest; an interesting, small moss flora has developed, especially on the dry, warm, south-facing flanks.
The semi-arid grasslands provide habitats for numerous butterflies, some of which are very rare. B. the dovetail and the yellow ribbon. The uncultivated, sun-exposed loess slopes of the ravine are habitat for the group of animals called the Aculeates Hymenoptera - Stechimmen - who mostly dig tubes in the loess wall in order to create their breeding nests there. 106 species from 51 genera have been detected at the site, eight of which are classified as endangered nationwide.
(from Wiki u LUBW)