Tall, Long-Stemmed Yellow-Flowered Plant
Puzzle 20 of New Orleans Medium Pack
Question is: Tall, Long-Stemmed Yellow-Flowered Plant
and the answer is: GOLDENROD
Word Meaning:
GOLDENROD — Any tall-stemmed plant principally from genus Solidago (also Oligoneuron), usually with clusters of small yellow flowers.
Definitions from Wiktionary.