1. Abelia
  2. Abies
  3. Abutilon
  4. Acacia
  5. Acalypha hispida
  6. Acalypha wilkesiana
  7. Acanthostachys strobilacea
  8. Acanthus
  9. Acer
  10. Achillea
  11. Achimenes
  12. Acorn
  13. Acorus
  14. Actinidia
  15. Adenium
  16. Adiantum
  17. Aechmea
  18. Aeonium
  19. Aerides
  20. African Tulip Tree
  21. Agapanthus
  22. Agaricus bisporus
  23. Agrocybe aegerita
  24. Aji dulce
  25. Aji pepper
  26. Ajuga
  27. Alchemilla
  28. Aldovanda vesiculosa
  29. Aleppo pepper
  30. Alexanders
  31. Allium
  32. Allspice
  33. Almond
  34. Alstroemeria
  35. Amelanchier
  36. Amherstia nobilis
  37. Anaheim pepper
  38. Ananas bracteatus
  39. Ananas comosus
  40. Ancho
  41. Anemone
  42. Angled Luffa
  43. Angsana
  44. Anise
  45. Annatto
  46. Anthemis
  47. Antigonon leptopus
  48. Aphelandra squarrosa
  49. Apple
  50. Apple mint
  51. Apricot
  52. Arachnis
  53. Arborio rice
  54. Armeria
  55. Armillaria mellea
  56. Artemisia
  57. Arugula
  58. Arum
  59. Aruncus
  60. Arundo
  61. Asarabacca
  62. Ascocentrum
  63. Asparagus densiflorus
  64. Aster
  65. Astilbe
  66. Athyrium
  67. Aucuba
  68. Auricularia Auricula Judae
  69. Auricularia polytricha
  70. Avena nuda
  71. Avena sativa
  72. Avocado
  73. Azalea