No, and yes
Periwinkle (Cataranthus sp.) is a african/madagascarian genus and does not occur naturally in the Amazon. However, the commen Cataranthus roseus (highly toxic and highly medinal, check it out!) is a pan-tropic weed by now.
the
there are colourful flowers
Heliconia Rafflesia
One can pick periwinkle flowers anywhere they are grown and are allowed to pick them. Many gardeners grow periwinkle flowers and you can also find them in the wild.
the heliconia flower
By explosion
The Amazon Rainforest is a Tropical Rainforest
The Amazon Rainforest is a tropical rainforest.
In the Amazon rainforest, the canopy is thick and may stretch to heights of 80 to 150 feet. These have flowers and fruits and are a good habitat for birds, insects and small mammals. The understory of the Amazon rainforest is characterized by high humidity, low light and constant heat.
Yes, periwinkle (Vinca minor) is a flowering plant that produces small, blue or purple, five-petaled flowers. It blooms in spring and summer.
there are names like daintree and the Amazon
Amazon Rainforest