Question: What type of plant are both Chlidanthus from tropical South America and Pleurothallis derived from a Greek word meaning 'riblike branches'?
Sentence (from "Chlidanthus"): In late spring to early summer, clusters of 3-4 large, strong citrus-scented fragrant, funnel-shaped flowers 10-13cm long held terminally on stalks 25cm high, colored in yellow, pink or red.
Relevant evidence: No