文冠果,又名木瓜、文冠花、崖木瓜、文官果等。无患子科,文冠果属。落叶灌木或小乔木,树高可达8米,奇数羽状复叶,互生,小叶9—19片,长椭圆形或拔针形,长3—5厘米,有锯齿,叶面光滑。花杂性,白花,花茎3—5厘米,30—60朵小花构成总状花序,种子黑褐色,圆形7—8粒,最多23粒。它是我国特有的木本油料,独种一属。多分布在内蒙、陕西、山西、河北等地的荒山沟谷之中,故有“崖木瓜”之称,群众称它是“铁杆庄稼”。适应性强它耐寒冷、干旱、半阴、盐碱,对贫瘠的土壤有较强的耐力,是深根性的树种,尤其适应在低温于旱条件下生长。在海拔1600米,无霜期只有105天的崇礼县西纳岭村,木瓜树生长结果很正常。据观察一年生的幼树高80厘米,而根深则达136厘米,侧根也很发达。在土壤疏松的地方根深可达 Wen-huang fruit, also known as papaya, Wen Hua flowers, Ya-papaya, civil and other fruit. Sapindaceae, Xuan crown fruit genus. Deciduous shrubs or small trees, tree height up to 8 meters, odd pinnate compound, alternate, 9-19 leaflets, oblong or needle-shaped, 3-5 cm long, serrated, smooth leaves. Flowers hybrid, white flowers, stems 3-5 cm, 30-60 flower constitute raceme, seed dark brown, round 7-8, up to 23 grains. It is unique to our country of woody oil, an independent genus. Mostly distributed in Inner Mongolia, Shaanxi, Shanxi, Hebei and other places in the barren hills and valleys, it is “Cliff Chaplet,” said the masses call it “hardcore crops.” Adaptability It is resistant to cold, drought, half shade, salt and alkali, on barren soil has strong endurance, is a deep-rooted tree species, especially adapted to grow at low temperatures in drought conditions. In 1600 meters above sea level, frost-free period is only 105 days Chongli County Xiner Village, papaya tree growth results are normal. It is observed that annual young sapling is 80 cm high, while the root depth is up to 136 cm. Lateral roots are also well developed. Deep in the soil loose reach up