The pine cones typically thought of as pine cones are actually the bigger female pine cones; male pine cones are not as woody and are much smaller in size. Female pine cones hold the seeds whereas male pine cones contain the pollen. Most conifers, or cone-bearing trees, have female and male pine cones on the same tree.Know More
A female pine cone, also called a megasporangiate strobilus, consists of cone or seed scales that hold two ovules, the unfertilized seeds. It takes about two years for female pine cones to become mature. When the seed matures, the cone opens up, exposing the seeds to the environment. Once the seeds are mature, the seed scales fall out of the cone. Seeds are then carried away from the parent tree by the wind and animals. Some female pine cones do not open up until they experience high temperatures such as during a forest fire.
The male pine cone, or microsporangiate strobilus, do not last as long as their female counterparts. Every spring, the pollen from the male pine cones are released into the air where they may eventually land on a scale on the female cone. Male pine cones are usually yellowish because of the pollen dust. Male cones exist in clusters on the tips of the branches of pine trees.Learn more about Environmental Science
Pine cones are not toxic to dogs, according to The Daily Puppy, but it is not a good idea to allow dogs to chew on them or eat them. Pine sap and pine needles are toxic to dogs, both of which may be present on pine cones.Full Answer >
To draw a simple pine tree, fill in a large cone with smaller cones stacked atop one another, add detail by etching jagged lines which follow along the curve of each inner cone to create boughs, and draw an additional cone beneath the bottom of the tree for the trunk. The project takes less than 30 minutes.Full Answer >
Pine cones reproduce by releasing seeds, either with wing-like structures that help them be dispersed by the wind or without wings to be dispersed by animals. The cones themselves are made up of woody scales that protect the seeds until they are ready and the conditions are right.Full Answer >
In the United States, pine cones range from the small, egg-shaped cones found on lodgepole pines that never exceed 2 inches in length to longer wooden cones of the knobcone and western white pines. The scales of some pinecones curve inwards, while others have straight and stiff scales. Some have knobby scales, while others have scales with a smooth surface.Full Answer >