句子分析，请问这个形容词为什么在这里作后置定语呢？

Question

Well, it follows my expedition to study the vegetation indigenous to the rainforest in equatorial areas.
这里的indigenous是形容词，为什么放在后面呢？

Answer 1

回答如下：
在英语中，有些词语、从句作定语时要后置，这包括有些形容词、形容词短语、副词、介词短语、不定式、分词短语和定语从句。另外，复合不定代词的定语要后置。现简述如下：
1. 以a-开头的表示状态的形容词作定语时须后置，如alive, asleep, alike, alone. awake, aware, ashamed, adrift, ablaze, absent, afraid, available等。例如：
The people alive will always remember those who died for New China.
The number of the students absent from the meeting is five.
He alone knows it.
The boy asleep soundly is my son.
2. 复合不定代词(something，everything，anybody，someone, nothing等)的定语要后置。例如：
I have something good to eat.
There is nothing wrong with the radio.
Is there anyone reliable?
3. 有些副词作定语时要后置, 如here, there, in, out, back, home, alone, above, before, upstairs, below, abroad, yesterday等。例如：
The villagers here live a happy life.
Your work before was not satisfying.
There is no way out.
On his way home, he met his classmate.
You should answer the questions below.
4. 介词短语、不定式、分词短语、定语从句作定语时要后置。例如：
The workers in the factory are on strike.
I have nothing to say.
The man (who is ) injured in the leg is my uncle.
The boy (who is )standing there is our monitor.
5. 疑问词的定语要后置。例如：
What important would you like to talk about?
Who else do you know?
Where new do you want to visit ?
6. 形容词enough作定语时可置于名词之前或之后。例如：
We have enough time / time enough to finish the task.

Answer 2

因为indigenous 是 和 to 搭配使用的，indigenous to 表示 固有的，土生土长的。
indigenous to the rainforest in equatorial areas 表示 赤道地区雨林中固有的....
其实只要记住这两个原则就好：
1. 形容词修饰名词是放在名词前面的
2. 但是短语和句子修饰名词时放在名词后的，主要目的是保持句子平衡本回答被提问者采纳

Answer 3

因为形容词后面还有个介词短语，这时的形容词就放在后面。
在德语中，形容词受介词短语修饰时，介词短语放在形容词前面，而形容词放在名词前，并且要作变化，如果形容词前面是不定冠词，作混合变化，如果形容词前面没有冠词，则作强变化。
希望我能帮助你解疑释惑。

Answer 4

因为这是一个比较长的形容词短语，相当于一个定语从句，只能后置。

Answer 5

因为是跟后面的to…一起修饰
如果只有一个形容词 就可以放名词前面