The pumpkin is a familiar fruit; it is an herbaceous running plant belonging to the melon family. The pumpkin fruit grows annually on vines that may reach up to 26 ft in length. Pumpkins generally weigh 9–18 lbs (4–8 kg) with the largest (of the species C. maxima) capable of reaching a weight of over 75 lbs (34 kg). The pumpkin varies greatly in shape, ranging from oblate to oblong. The rind is smooth and usually lightly ribbed. Although pumpkins are usually orange or yellow some fruits are dark green, pale green, orange-yellow, white, red and gray. The flowers are monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and are pollinated by insects.
Know your Pumpkins - Know your Vegetables - Google Sites, https://sites.google.com/site/knowyourvegetables/know-your-pumpkins (accessed January 23, 2017).
Alnus sinuata Sitka Alder PFAF Plant Database, http://www.pfaf.org/user/Plant.aspx?LatinName=Alnus%20sinuata (accessed January 23, 2017).