Juglans microcarpa 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 Texas, New Mexico, Oklahoma, and Kansas. It produces nuts with a width of 1/2—3/4 in. The pinnately compound leaves bear 7—25 untoothed to finely-toothed leaflets, each 1/4—1/2 in wide. It is found at elevations ranging from 700 ft to 6700 ft. Two varieties are recognized: "J. microcarpa" var. "microcarpa" and "J. microcarpa"
Buff-sided robin binominal name translates as stag-bellied dappled tree-nymph. The generic name "Poecilodryas" (= spotted or dappled wood-nymph) refers to the spots on the wing and tail of species in this genus and its characteristic flight and perching behaviour. The specific name "cerviniventris" refers to the buff colouration of the chest, derived from "cervus" = stag or deer and "ventris" = vent or belly. The buff-sided robin is a medium to large sized robin species, with body length ranging from . Adult buff-sided robins are not sexually dimorphic and the sexes cannot be differentiated on the basis of plumage. However males are