Point 2. Words for flowers, trees, and the like

English ภาษาไทย
 Flower  ดอกไม้
 Leaf  ใบไม้
 Tree  ต้นไม้
 Rose (the flower)  ดอกกุหลาบ
 Rose leaf  ใบกุหลาบ
 Rose bush  ต้นกุหลาบ

General terms for flowers, leaves, trees, and the like are all compounds, and all take ma2ּj 'wood' as their second member. When a specific kind of flower or tree is mentioned, however, the word ma2ּj is replaced by the specific term for the flower or tree, as shown in the second column above.