Plant Variety Protection Act and regulations and rules of practice. by United States. Agricultural Marketing Service Open Library Adaptation of mesophytes Mesophytes are plants that grow in environments with moderate water availability (neither too dry nor too wet). They show adaptations suited to such balanced conditions. Key Adaptations of Giant Canna Red King Humbert Gentiana andrewsii (Bottle Gentian): Minnesota Wildflowers Sadie Plant Frieze Indoor Plant Wall Modern Boho Planter Pots The DIY Lighthouse