The floss silk tree (Ceiba speciosa) has adapted well to San Diego's climate through its drought-resistant features, such as a thick, water-storing trunk and a deciduous nature that allows it to conserve water during dry periods. Its large, spiky pods protect the seeds from herbivores, while its vibrant flowers attract pollinators, enhancing its reproductive success. Additionally, the tree's ability to thrive in poor soil conditions makes it suitable for urban environments.
It sounds like you are describing a silk floss tree (Ceiba speciosa). This tree has large thorns and produces vibrant pink flowers when in bloom. It is native to South America.
Ceiba speciosa, also known as the silk floss tree, has several unique adaptations for survival. Its trunk is loaded with water-storing fibers to withstand drought conditions, and its thorns protect against herbivores. Additionally, its large, showy flowers attract pollinators for reproduction.
The silk floss tree, also known as Ceiba speciosa, has large spikes on its trunk. These spikes are used for protection against browsing animals and are a distinctive feature of the tree.
Chorisia speciosa or Floss-Silk tree Robinia pseudoacacia, Black Locust Gleditsia triacanthos, Honey locust Acacia tortilis, Umbrella Thorn tree Acacia greggii, Catclaw Acacia Bombacopsis quinatum, Pochote tree ------------------------------------------ A thorny trunked tree a cactus
Chorisia speciosa or Floss-Silk tree Robinia pseudoacacia, Black Locust Gleditsia triacanthos, Honey locust Acacia tortilis, Umbrella Thorn tree Acacia greggii, Catclaw Acacia Bombacopsis quinatum, Pochote tree ------------------------------------------ A thorny trunked tree a cactus
a cactus grows spikes and is found in most deserts.
I don't think there's such a thing as a silk tree (rather there is one that is nick named silk tree but it doesn't exactly produce silk.) The fluffy 'Kapok' material comes from a Kapok tree.
silk worms are tiny worms hanging from silk on a tree
cold adaptation
There are a number of plants that use or have the word Silk in thier common names;These include:Albizia julibrissin (Persian silk tree, pink silktree)Bombax ceiba (Red Silk Cotton Tree)Ceiba pentandra (Kapok, Ceiba or Silk Cotton Tree)There are also such things as "silk plants" which are fake or artificial plants that are made of silk. They are commonly used as decorations.
They used Silk from Spiders or cloth from the tree
Silk Cotton Tree