Description
If there are 2, 3 or 5 needles attached in a fascicle (bundle) on the stem, it is Pinus. On 2 and 3- needle pines, the fascicle is held in place with a thin membranous sheath called a fascicle sheath or bundle sheath. On 5-needle pines the fascicle sheath is quickly deciduous and will not be present.
Preview
![image preview](https://dc.cod.edu/horticulture-2242-psf-needle/1000/preview.jpg)
Image Source
Karren Wcisel, TreeTopics.com
Image Creation Date
2014
Keywords
Pinaceae, tree, conifer, cone, needle, evergreen, Pinus, pine, Picea, spruce, Abies, fir