非洲的南部和西南地区,气候条件十分恶劣,炎热的夏季绝对气温可达50℃以上,雨水极少,因而植物非常少,四处一望,满眼都是岩石和沙砾。然而,偏偏就有一种植物敢于向这种恶劣的大自然挑战,顽强地生长在这里,无论是岩床的隙缝间,还是灰黄的石砾上,都能见到它们的奇异身影。这种植物不仅要与高温干旱的气候条件抗争,还要让自己在生长中免遭动物的侵害与饕餮。对付前者,它们让叶子长得特别肥厚,这样就可以储藏大量水分。虽说水分满足了其生存需要,但它们也成了艰难生存在那里 In southern and south-western Africa, the climatic conditions are very bad. In the hot summers, the absolute temperature can reach above 50 ° C with very little rain. As a result, there are very few plants and the plants are full of rocks and gravel. However, there is a plant that dares to challenge this harsh nature and grows tenaciously here, whether it be the sills of the bedrock or the greyish gravel, and can see their singularity. This plant must not only compete with the hot and dry climatic conditions, but also keep itself growing free from animal abuse and gluttony. For the former, they make the leaves look fat and thick, so they can store a lot of water. Although the water meets its survival needs, but they have become difficult to survive there