Are Holmskioldia and Echinocereus both types of plants?
Holmskioldia Holmskioldia is a genus of flowering plants in the mint family, Lamiaceae. It is native to the Himalayas (India, Pakistan, Nepal, Bhutan, Bangladesh, Myanmar) but widely cultivated as an ornamental and naturalized in many places (Southeast Asia, New Caledonia, Hawaii, Mexico, West Indies, Venezuela, etc.) It contains only one known species, Holmskioldia sanguinea, commonly called the Chinese hat plant, cup-and-saucer-plant or mandarin's hat.
Echinodorus tunicatus Echinodorus tunicatus is a species of aquatic plants in the family Alismataceae.