Jeffrey Pine (Pinus jeffreyi) has a sturdy root structure with a deep taproot and extensive,strong lateral roots. It is highly resistant to windthrow (uprooted or broken by wind). These trees,photographed in Lassen National Park,California,USA,are growing in a volcanic pumice soil | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wilson, Stuart |
Taille de l’image : | 4288 px × 2848 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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