1. Between the tropics; equatorial 
2. On the earth, directly beneath the sun

Encyclopedia: Subsolar

• genus Helvella
• genus Helwingia
• genus Helxine
• genus Hemachatus
• genus Hemerocallis
• genus Hemigalus
• genus Hemigrammus
• genus Hemipteronatus
• genus Hemitripterus
• genus Hepatica
• genus Heracleum
• genus Heritiera
• genus Hermannia
• genus Hermissenda
• genus Hernaria
• genus Herpestes
• genus Herrerasaurus
• genus Hesperiphona
• genus Hesperis
• genus Heteranthera
• genus Heterocephalus
• genus Heterodon
• genus Heteromeles
• genus Heteroscelus
• genus Heterotheca