H. vulgaris explained
H. vulgaris may refer to:
- Hippuris vulgaris, the common mare's tail, a common aquatic plant species found in Eurasia
- Hydra vulgaris, a small freshwater hydroid species
- Hydrocotyle vulgaris, the marsh pennywort, a small creeping perennial herb species native to North Africa, Europe, Florida and west to the Caspian region
See also
