TROPICAL PLANT ENCYCLOPEDIA
Paeonia delavayi
Delavay's Tree PeonyFamily: Paeoniaceae
Origin: China
USDA Plant Hardiness Zone Map
Paeonia delavayi mostly has red brown to yellow, nodding flowers.
Paeonia delavayi is variable in the number and shape of the leaflets and in the number, size, and color of all parts of the flower both within and between populations. Paeonia lutea, P. potaninii, and P. trollioides are all regarded as synonyms of P. delavayi. P. lutea var. ludlowii was shown to differ in a number of characters and is now named Paeonia ludlowii.
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Link to this plant:
https://toptropicals.com/catalog/uid/paeonia_delavayi.htm