Nature Notes

Volume II No. 1 - July 1, 1929

Tree Curvature
By L.D. Leslie, Ranger-Naturalist

A majority of the trees growing on the steep moraines of old Mount Mazama have a pronounced curvature at their base. So prominent is this bending that many tourists wonder at the phenomenon.

sketch of 'curved' trees

"Soil Creep" offers a solution of this problem. This process is usually brought about by the alternate freezing and thawing of the soils on the steep slopes of the moraine. However, another agent, the underground water also aids in soil movement. The water table appears very near the surface on some of the moraines and on their steeper slopes the water has given rise to small land slides.

Nature has provided that the tree should grow in an erect manner in order to receive the light stimulus most efficiently. Consequently, since the top soil moves and the roots of the tree remain anchored in the subsoil, it is necessary that the tree bend at its base to maintain the upright position.

The Early Flowers
By Frederick L. Wynd

sketch of western anemone

The early blooming flowers are usually small and inconspicuous. This may be because they are generally those species that rely largely on the food which they have stored during the previous season. Food which has been so carefully hoarded over the winter is not to be wasted in producing needlessly large plant bodies. If one is observant, however, he may even at this early part of the season find an abundant number of species in bloom.

The following list has been identified from near the Rim and Government Camp before July 1st, and these are the species which the tourist may expect to see at this time of the year:

Clintonia uniflora (Schult.) Kunth.
Vagnera amplexicaulis (Nutt.) Greene.
Limnorchis stricta (Lindl.) Rydb.
Limnorchis dilatata (Pursh) Rydb.
Salix sitchensis Sanson
Salix eastwoodiae Cockerell
Salix scouleriana Barratt
Alnus sinuata (Regel) Rydb.
Eriogonum umbellatum Torr.
Polygonum newberryi Small
Spraguea umbellata Torr.
Claytonia lanceolata Pursh
Anemone drummondii Wats.
Pulsatilla occidentalis (Wats.) Froyn.
Ranunculus gormanii Greene
Ranunculus eschscholtzii Schlecht.
Bicuculla formosa (Andr.) Coville
Bicuculla uniflora (Kellogg) Howell
Parrya menziesii (Hook.) Greene
Ribes erythrocarpum Cov. & Leiberg
Ribes cereum Dougl.
Ribes viscosissimum Pursh
Ribes lacustre (Pers.) Poir.
Potentilla glandulosa Lindl.
Prunus emarginata (Dougl.) Walp.
Amelanchier florida Lindl.
Ceanothus prostratus Benth.
Ceanothus velutinus Dougl.
Viola purpurea Kellogg
Viola glabella Nutt.
Viola praemorsa Dougl.
Arctostaphylos nevadensis Greene
Arctostaphylos patula Greene
Kalmia glauca microphylla Hook.
Vaccinium scoparium Leiberg
Vaccinium membranaceum Dougl.
Phlox douglasii Hook.
Polemonium viscosum elegans
Lapulla diffusa (Lehm.) Greene
Valeriana sitchensis Bong.
Agoseris alpestris (Gray) Greene

sketch of wildflowers

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