OREGON COAST KJ.OItA 



.il.i 



G. purpureum 



Habenaria michaoli 



Holcus lanatus 



Holodiscus discolor 



Hypericum anagalloides 



HypochaL-ris raunui.i 



Iris tenax 



Juncus bufonius 



J. effusus var. hesperius 



J. ensifolius 



Ledum columbianum 



Lolium perenne 



Maianthemum dJiatatum 



Medicago lupuliua 



Montia parvifiora 



Myrica calitornlca 



Oenantha sarmentosa 



Panicum occideutale 



Picea sitchensis 



Pinus contorta 



Plantago lanceolata. 



P. major 



Poa annua 



P. pratensis 



Polygonum aviculare 



P. persicaria 



Prunella vulgaris var. lanceolata 



Pyrola bracteala 



Ranunculus bongardi 



R. occidentaliH 



iihododfuidrfjii calif or iiicuin 



Rosa nutkana 



liubus inacropeUlua 



it. spectabilis 



Rumex acetosella 



Sagina occid^jntalis 



Salix hoolteriana 



Sanguisorba rniorocephala 



Sisymbrium officinajf; var. Iciocar- 



pum 

 Sisyrinchium californicum 

 Solidago elongala 

 S. glutinosa 

 Spergularia rubra 

 Spiraea douglasii 

 Spiranthos rornanzoffiana 

 Stellaria media 

 Strept.opus amplexifolius 

 Synthyris rotundifolia 

 Taraxacum officinala 

 Trifolium dubium 

 T. fimbriatum 

 T. repens 

 Urtica lyallll 

 Vaccinium ovatum 

 V. parvifolium 



V. uliginosum var. rnucronat.um 

 Viola sarmentosa 



A number of sptvv^-., such as certain aquatic and suhafjuaiic forms, 

 and others that barely come within this area are omitted from the list, 

 as they contribute nothing toward an understanding of the character- 

 istics of the assemblage as a whole, and will be mentioned elsewhere. 



The most interesting of this group of sjxicies are the trees and 

 shrubs, since they show to a more marked degree than the herbaceous 

 plants the effect of their exposure to the winds from the sea. 



Picea sitchensis is excessively di.storted, and many of the trunks 

 are inclined landward at a very low angle. The smajl branches and 

 twigs on the seaward side are very short and densely matted, appear- 

 ing as if closely clipped, so that viewed from this side the tree pre- 

 sents a smooth, sloping surface. The trees usually grow in close 

 order but seldom in large groups, though in some instances they 

 form a continuous border along the seaward side of a forest of more 

 normal development. Often the closely interwoven and matted 

 branches cut off the light to such an extent that all the lower limbs 

 die out, and for the same reason no smaller vegetation springs 

 up beneath them and among the close-ranked trunks there is a com- 

 paratively open space where a deep twilight always prevails. The 

 trees are not commonly more than three or four meters in height, 

 and so firm and rigid is this natural roof that with care one can 

 walk over it without danger of falling through. 



