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Key to Pinaceae

Pinaceae

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(c) Hardin, J.W.
(c) Bradley, Keith
1 Leaves either borne in fascicles of 2-5 (basally bound by a scarious sheath) or on short shoots in clusters of many leaves in apparent whorls.
(c) Bradley, Keith
(c) Bradley, Keith
  2 Leaves borne in fascicles of 2-5 (basally bound by a scarious sheath); [subfamily Pinoideae]
(c) Hardin, J.W.
  2 Leaves borne on short shoots in clusters of many (>10) leaves in apparent whorls.
(c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG
(c) Ware, Richard & Teresa - CC-BY-NC, permission granted to NCBG
    3 Leaves evergreen; cones 6-12 cm long; [subfamily Abietoideae]
(c) Ward, Scott G
    3 Leaves deciduous; cones 1-2 cm long; [subfamily Pinoideae]
1 Leaves alternate.
(c) Keith, Eric - CC-BY-NC, permission granted to NCBG
(c) Bradley, Keith
      4 Leaves 4-angled in cross-section; [subfamily Pinoideae]
      4 Leaves distinctly flattened (2-sided) in cross-section.
(c) Bradley, Keith
(c) Julie, Tuttle - C, permission granted to NCBG
        5 Leaves jointed, on short, persistent base; cones 1-3.8 cm long, pendent; [subfamily Abietoideae]
        5 Leaves attached directly to twig; cones 4-15 cm long, erect (Abies) or pendent (Pseudotsuga)
(c) Ward, Scott G
(c) Bradley, Keith
          6 Seed cones erect, disintegrating scale by scale and leaving the cone axis as a persistent spike on the tree; [subfamily Abietoideae]
(c) Hardin, J.W.
(c) Sorrie, Bruce A. - CC-BY
          6 Seed cones pendent, falling whole from the tree; [subfamily Pinoideae]