External characteristics of plants

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Across
  1. 2. A modified stem, connected via vascular tissue, for protection (5)
  2. 4. A plant with both female flowers and male flowers(10)
  3. 5. Irregular-shaped, loosely-packed leaf tissue, filler or packer (6,9)
  4. 7. Name of the inflorescence shape of Dandelions and Sunflowers (9)
  5. 8. A leaf shape representative of a heart (7)
  6. 10. Openings on the underside of leaves for gaseous exchange (7)
  7. 12. The stalk of an individual flower (7)
  8. 13. A collective term for all the stamens (10)
  9. 14. Alternative term for the leaf blade (6)
  10. 17. The outer layer of cells of stems and leaves (9)
  11. 19. A plant which loses its leaves all at once at the end of the growing season (9)
  12. 21. Modified leaf or shoot for a climbing plant (7)
  13. 22. A flower's colourful appendage to attract pollinators (5)
  14. 24. The stalk of an individual leaf (7)
  15. 26. Flowers with both male and female sexual organs(13)
  16. 28. The shape of the veins in a monocotyledonous leaf (8)
  17. 29. A collective term for a group of carpels (9)
  18. 30. The embryonic stem and leaves inside the seed (7)
  19. 31. A toothy edge to a leaf margin (7)
  20. 32. Collective term for anther and filament (6)
  21. 33. A protective structure, modified from the epidermis as with Rosa spp. (7)
  22. 34. Vascular tissue which transports water (5)
Down
  1. 1. Vascular tissue which transports food (6)
  2. 3. The transfer of male sexual cells from stamen to the female stigma (11)
  3. 6. The whole purpose of a leaf (14)
  4. 9. Oblong, tightly packed, leaf tissue full of chlorophyll (9,4)
  5. 11. Leaf shape comprising of individual leaflets sharing a midvein (8)
  6. 15. Protects the petals on a flower (5)
  7. 16. A plant that has only one type of flower - male or female (9)
  8. 18. A leaf edge without any teeth or notches (6)
  9. 20. Protective sheath covering the embryonic leaves of a monocot seed (10)
  10. 23. A plant which loses individual leaves throughout the year (9)
  11. 25. Term for a group of flowers and how they're held on the plant (13)
  12. 27. The embryonic root inside the seed (7)