Juglans microcarpa var. "stewartii". Where the range of "J. microcarpa" overlaps with "J. major", the two species interbreed, producing populations with intermediate characteristics. This phenomenon has also been found where "J. microcarpa" trees grows near "J. nigra trees. "Juglans" (literally "Jupiter's acorn") is the Latin name of the walnut. "Microcarpa" means "having small fruit". Juglans microcarpa Juglans microcarpa, known also as the little walnut, Texas walnut, Texas black walnut or little black walnut (as it belongs to the "black walnuts" section "Juglans" sect. "Rhysocaryon"), is a large shrub or small tree (10–30 ft tall) which grows wild along streams and ravines in
Fruit tree forms whilst keeping the tree short and accessible for harvesting. Other shapes such as cordons, espaliers and fans offer opportunities for growing trees two dimensionally against walls or fences, or they can be trained to function as barriers. Some of the following fruit tree forms require training by tying the branches to the required form. Most require pruning to retain the desired structure. However, not all types of fruit tree are suitable for all forms; apples and pears do well as cordons and espaliers, for example, whereas cherries are more suited to the fan form. An open-centred crown on a short