ONAGRACEAE =Ludwigia-Chamerion-Epilobium

 I-ONAGRACEAE=LUDWIGIA-CHANERION-EPILOBIUM-OENOTHERA- CIRCAE

A-LUDWIGIA

B-LUDWIGIA=STEM 4 ANGLE,STAMEN 4-12

C-EPILOBIUM=SEED WITH TUFF OF HAIRS CALIX ELONGATE

D-CHAMERION  SEED WITH HAIRS CALIX DECIDUOS

E-OENOTHERA-SEED NAKED OR TUBERCULATE

F-CIRCAEA- FLORAL WHORLS OF 2 PART

II-LUDWIGIA 4 STAMEN ,LEAVES ALTERNATE,PETAS NONE OR SMALL

1-LUDWIGIA  PALUSTRIS

2-LUDWIGIA ARCUATA

3-LUDWIGIA BREVIPES

4-LUDWIGIA SPHAEROCARPA

5-LUDWIGIA POLYCARPA

6-LUDWIGIA GLANDULOSA

7-LUDWIGIA ALATA

8--LUDWIGIA LINEARIS

III-LUDWIGIA FLOWER SHOWY STAMENS 4

1-LUDWIGIA HIRTELLA

2-LUDWIGIA ALTERNIFOLIA

IV- LUDWIGIA SHOWY FLOWERS STAMENS 8-10 IN 2 ROWS

1-LIUDWIGIA PEPLOIDES VAR GALBERSCENS  10 STAMENS

2-LUDWIGIA DECURRENS 8 STAMENS

V-CHAMERION  STAMEN 8 IN 2 ROWS SEED WITH TUFF HAIRS ,PURPLE FLOWER

1-CHAMERION ANGUSTIFOLIUM

2 CHAMERIUM LATIFOLIUM

VI- EPILOBUM ALTERNATE OR OPPSITE LEAVES  CALIX TUBE LINEAL,STAMEN 8

                                                      CAPSULE 4 SIDED

1-EPILOBUM HIRSUTUM

2-EPILOBIUM ANAGALLIDIFOLIUM

3-EPILOBIUM PALUSTRE

4-EPILOBIUM STRICTUM

5-EPILOBIUM BRACHYCARPUM

6-EPILOBIUM COLORATUM

7-EPILOBIUM HORNEMANNII

8-EPILOBIUM CILIATUM