Question

What are the difference between a woody eudicot stem and a herbaceous stem in cross section?

Answer 1

Eudicots are the angiospermic plants . The Eudicot stem shows a ring of vascular cambium in the stem.Eucotyledonous are the largest group of Angiospermic group.They iclude cultivated plants and trees.

Herbaceous plants are those which are not having any persistent woody stem above the ground.These may be Annuals, Biennials and Perennials.

Differences between the Eudicot stem and a Herbaceous stem can be given as follows. They are as follows

Eudicot stem	herbaceous stem
woody in ature	no woody tissue.

other differeces are :

Eudicot stem Herbaceous stem

1. Cosists of a woody tissue 1.No woody tissue

2.cross section contais cork,cork cambium,cortex, 2. cotains eidermis, pith ,phloem ad xylem

phloem ray and phloem together forms the bark region of the stem.

3.vascular cambium, secodary xylem and annual rings are present. 3.Annual rings are absent.

4. secondary growth is seen 4.secondary growth is not seen.

5. xylem and phloem are differentiated into primary xylem 5. xylem and phloem are not differentiated

and phloem and secondary xylem and phloem.

6.Bark, wood and the pith regions ae clearly differetiated. 6. bark is absent.

7. cork is present 7. cork is absent.