Biotic Factors

Autotrophs:

Pricklypears are cacti with spiny joints and are a very common cactus found in Mexican deserts.

Beadvine or Rosary Pea are beans on a vine that climb onto a Piich tree. The beans are supossedly poisonous but people string them to make necklaces and bracelets.

Thalassia testudinum or Seagrass are largest and thickest where underground rivers from inland Yucatán release their waters offshore.

Guinea Grass is tough enough to survive the tropics' heat and droughts, yet provides forage for livestock.

Senecio Confusus or Mexican Flame-vines are orange-yellow weeds of flowers that bloom in the spring.