Campaka (Plumeria Alba)

The five ingredients for Deity worship are (1) very good scents, (2) very good flowers, (3) incense, (4) a lamp and (5) something edible…..(12) offer flowers with good fragrance, like the rose or campaka.
(CC Madhya 24.334)

Lake Bindu-sarovara was adorned by flowering trees such as kadamba, campaka, aśoka, karañja, bakula, āsana, kunda, mandāra, kuṭaja and young mango trees. The air was filled with the pleasing notes of kāraṇḍava ducks, plavas, swans, ospreys, waterfowl, cranes, cakravākas and cakoras.
PURPORT
For most of the trees, flowers, fruits and birds mentioned here as surrounding Bindu-sarovara Lake, English synonyms cannot be found. All the trees mentioned are very pious in that they produce a nice aromatic flower, such as the campaka, kadamba and bakula. The sweet sounds of waterfowl and cranes made the surrounding area as pleasant as possible and created a very suitable spiritual atmosphere.
(SB 3.21.42-43)

Śrī Advaita Ācārya then smeared the bodies of the Lords with sandalwood pulp and then placed very fragrant flower garlands on Their chests.
(CC Madhya 3.104)

Here we are offering a little food, little leaf, little flower. But what is the essence? What is the value of flower? Value, there is practically no value. But yo me bhaktyā prayacchati. The real value is that the flower is offered with devotion, the food is offered with devotion.
(731009 – Lecture BG 13.15 – Bombay)