Table 2 Importance percentage (IP) and mean importance percentage (MIP) of all species in S. prunifolia community

Castanopsis sieboldii (Makino) Hatus.

48.8

18.5

21.9

16.1

31.1

Quercus acuta Thunb.

17.8

12.2

5.2

1.2

11.9

Eurya japonica Thunb.

–

13.4

31.2

7.2

11.0

Camellia japonica L.

–

8.9

18.6

7.4

7.1

Distylium racemosum Siebold & Zucc.

–

16.8

5.4

0.9

6.2

Pinus thunbergii Parl.

12.1

–

–

–

4.8

Carpinus laxiflora (Siebold & Zucc.) Blume

8.4

1.6

–

0.9

3.9

Cleyera japonica Thunb.

–

10.2

2.0

0.8

3.5

Symplocos prunifolia Siebold & Zucc.

4.8

–

3.3

–

2.6

Styrax japonicus Siebold & Zucc.

2.3

3.4

–

–

1.9

Vaccinium japonicum Miq.

–

–

–

16.7

1.7

Rhododendron weyrichii Maxim.

–

3.3

2.5

1.1

1.6

Dendropanax morbiferus H.Lév.

–

2.9

1.5

0.7

1.2

Prunus sargentii Rehder

2.9

–

–

–

1.2

Ilex integra Thunb.

2.9

–

–

–

1.1

Cinnamomum japonicum Siebold ex Nees

–

1.8

2.3

0.7

1.1

Quercus salicina Blume

–

2.3

1.5

–

1.0

Smilax china L.

–

1.5

1.5

1.5

0.9

Ardisia crenata Sims

–

–

–

5.3

0.5

Cryptomeria japonica (L.f.) D.Don

–

–

1.8

1.6

0.5

Maackia fauriei (H.Lév.) Takeda

–

1.7

–

–

0.5

Lemmaphyllum microphyllum C.Presl

–

–

–

4.8

0.5

Sapium japonicum (Siebold & Zucc.) Pax & Hoffm.

–

1.5

–

–

0.5

Deparia japonica (Thunb.) M.Kato

–

–

–

4.1

0.4

Ardisia japonica (Thunb.) Blume

–

–

–

4.0

0.4

Damnacanthus indicus C.F.Gaertn.

–

–

–

4.0

0.4

Trachelospermum asiaticum (Siebold &Zucc.) Nakai

–

–

–

3.4

0.3

Callicarpa mollis Siebold & Zucc.

–

–

1.4

–

0.3

Daphniphyllum macropodum Miq.

–

–

–

1.8

0.2

Pyrrosia lingua (Thunb.) Farw.

–

–

–

1.8

0.2

Lepisorus thunbergianus (Kaulf.) Ching

–

–

–

1.5

0.2

Pteridium aquilinum var. latiusculum Underw. ex Hell.

–

–

–

1.5

0.2

Stauntonia hexaphylla (Thunb.) Decne.

–

–

–

1.4

0.1

Dryopteris varia (L.) Kuntze

–

–

–

1.4

0.1

Neolitsea aciculata (Blume) Koidz.

–

–

–

1.2

0.1

Parthenocissus tricuspidata (Siebold & Zucc.) Planch.

–

–

–

1.1

0.1

Osmunda japonica Thunb.

–

–

–

1.0

0.1

Ainsliaea apiculata Sch.Bip.

–

–

–

0.9

0.1

Lindera erythrocarpa Makino

–

–

–

0.9

0.1

Hedera rhombea (Miq.) Bean

–

–

–

0.8

0.1

Polystichum polyblepharum var. polyblepharum Presl

–

–

–

0.7

0.1

Clerodendrum trichotomum Thunb.

–

–

–

0.7

0.1

Viburnum erosum Thunb.

–

–

–

0.7

0.1

Total

100.0

100.0

100.0

100.0

100.0