Betulaceae: Alnus serrulata - Native, from Navasota Flora. (catkin - male) - photo: James Manhart
Betulaceae: Alnus serrulata - Native, from Navasota Flora. (catkin - female) - photo: James Manhart
Betulaceae: Alnus serrulata - Native, from Navasota Flora. (catkin - female) - photo: James Manhart
Betulaceae: Alnus serrulata - Native, from Flynn Bog, Leon Co., TX. Known as Brookside Alder. (female catkin (close up)) - photo: James Manhart
Betulaceae: Betula nigra - Native, from Flynn, TX. (female catkin) - photo: James Manhart
Betulaceae: Betula nigra - Native, from Flynn, TX. (catkin - female) - photo: James Manhart
Betulaceae: Betula papyrifera (zoom) - Leaf, catkin; Birch walkway near Stan Hywet Hall, Akron, Ohio - photo: Hugh Wilson
Fagaceae: Quercus gambelii - Native, from Big Bend National Park. (male catkin) - photo: James Manhart
Fagaceae: Quercus nigra - catkin - photo: Hugh Wilson
Fagaceae: Quercus nigra - catkin - close - photo: Hugh Wilson
Fagaceae: Quercus sp. - Cultivated. (catkin) - photo: James Manhart
Fagaceae: Quercus sp. - Cultivated. (catkin) - photo: James Manhart
Fagaceae: Quercus sp. - Cultivated. (catkin - close-up) - photo: James Manhart
Juglandaceae: Carya sp. (inflorescence - catkin)
Juglandaceae: Carya texana - Native, from Navasota Flora. (catkin) - photo: James Manhart
Moraceae: Morus alba - Staminate catkin; Travis Co., TX - photo: David Lemke (SWTS)
Moraceae: Morus alba - Staminate catkin (close-up); Travis Co., TX - photo: David Lemke (SWTS)
Salicaceae: Salix nigra - Native, from Wellborn, TX. (male catkin) - photo: James Manhart
Salicaceae: Salix nigra - Native, from Wellborn, TX. (female catkin) - photo: James Manhart
Salicaceae: Salix sp. - Native, from Zion National Park, UT. (mature female catkin) - photo: James Manhart