Question:
Which of the following genera belong to warm orchids?
(A). Cymbidium
(B). Phalaenopsis
(C). Miltonia
(D). Dendrobium
Choose the correct answer from the options given below:
Which of the following genera belong to warm orchids?
(A). Cymbidium
(B). Phalaenopsis
(C). Miltonia
(D). Dendrobium
Choose the correct answer from the options given below:
(A). Cymbidium
(B). Phalaenopsis
(C). Miltonia
(D). Dendrobium
Choose the correct answer from the options given below:
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For exams, remember:
- Cool-growing orchids = Cymbidium, Paphiopedilum (some), Miltonia
- Warm-growing orchids = Phalaenopsis, Vanda, Dendrobium
Updated On: Jul 10, 2026
- (A) and (B) only
- (A), (C) and (D) only
- (B) and (C) only
- (B) and (D) only
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Orchids are classified into three temperature groups based on the native environments of their parental species: cool-growing, intermediate-growing, and warm-growing.
Step 2: Detailed Explanation:
- Phalaenopsis (Moth Orchid): A warm-growing epiphyte native to hot, humid tropical lowlands. It grows best in temperatures between $21^{\circ}\text{C}$ and $30^{\circ}\text{C}$.
- Dendrobium: Many commercial tropical species of this large genus are warm-growing, thriving under tropical conditions with warm night temperatures.
- Cymbidium: A classic cool-growing orchid genus native to high-altitude subtropical regions. It requires cool night temperatures ($10^{\circ}\text{C}$-$14^{\circ}\text{C}$) to initiate flower spikes.
- Miltonia (Pansy Orchid): A cool-to-intermediate growing genus that is sensitive to high temperatures.
Therefore, Phalaenopsis and Dendrobium are classified as warm orchids.
Step 3: Final Answer:
The warm orchid genera are Phalaenopsis and Dendrobium.
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