H. polymorpha

H. polymorpha may refer to:


 * Hansenula polymorpha, a methylotrophic yeast
 * Hedypnois polymorpha, a dandelion native to areas from Canary Islands to Iran
 * Heterolocha polymorpha, a geometer moth
 * Heteropurpura polymorpha, a sea snail
 * Hydra polymorpha, an athecate hydroid
 * Hydrostachys polymorpha, an aquatic plant
 * Hymenachne polymorpha, a true grass
 * Hyphomonas polymorpha, a psychrophilic bacterium
 * Hypoestes polymorpha, a Paleotropical plant