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Ed Gohlich . Chestnut. American chestnut (Castanea dentata) are trees with green balls and used to be one of the most widespread native trees in North America, but a fungus blight wiped out most ...
Neltuma glandulosa shrubs and trees provide shelter and nest building material for wildlife, and produce seed pods in abundance containing beans that are a seasonal food for diverse birds and small mammal species. [5]
The loss of North American megafauna at the end of the Pleistocene era gave way to one theory of how the Prosopis spp. were able to survive. One theory is that the loss of the megafauna allowed Prosopis spp. to use their fruit pods to attract other organisms to spread their seeds; then, with the introduction of livestock, they were able to ...
Flower spikes. Strombocarpa pubescens (formerly Prosopis pubescens), commonly known as screwbean mesquite, [2] is a species of flowering shrub or small tree in the pea family, Fabaceae, that is native to the southwestern United States (Texas, Arizona, New Mexico, California, southern Nevada and Utah) and northern Mexico (Baja California, Chihuahua, Coahuila, Sonora).
The two North American species, Catalpa bignonioides (southern catalpa) and Catalpa speciosa (northern catalpa), have been widely planted outside their natural ranges as ornamental trees for their showy flowers and attractive shape. Northern and southern catalpas are very similar in appearance, but the northern species has slightly larger ...
The trees are dioecious, and the fruit is a hard-shelled bean in heavy, woody, thick-walled pods filled with sweet, thick, gooey pulp. Pod length ranges from 5 to 10 inches (130 to 250 mm); unfertilized female trees may bear miniature seedless pods.
The fruit of the Southern Catalpa resembles bean pods. The fruit is a long, thin seed pod 20–40 cm long and 8–10 mm in diameter; it often stays attached to the tree during winter. The capsule contains numerous flat light brown seeds with two papery wings. Despite its appearance, it is not closely related to true beans.
The seed pods have five valves which coil back rapidly to eject the seeds in a process called explosive dehiscence [9] or ballistochory. This reaction is where the name 'touch-me-not' comes from; in mature seed pods, dehiscence can easily be triggered with a light touch. The plant blooms from late spring to early fall.