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Immature male or pollen cones of Rocky Mountain ponderosa pine. ( Pinus ponderosa var. scopulorum) A conifer cone or pinecone ( strobilus, pl.: strobili in formal botanical usage) is a seed-bearing organ on gymnosperm plants. It is usually woody, ovoid to globular, including scales and bracts arranged around a central axis, especially in ...
The term bristlecone pine covers three species of pine tree (family Pinaceae, genus Pinus, subsection Balfourianae ). All three species are long-lived and highly resilient to harsh weather and bad soils. One of the three species, Pinus longaeva, is among the longest-lived life forms on Earth. The oldest of this species is more than 4,800 years ...
Pinus sylvestris is an evergreen coniferous tree growing up to 35 metres (115 feet) in height [ 4] and 1 m (3 ft 3 in) in trunk diameter when mature, [ 5] exceptionally over 45 m (148 ft) tall and 1.7 m ( 51⁄2 ft) in trunk diameter on very productive sites. The tallest on record is a tree over 210 years old growing in Estonia which stands at ...
Australes. Engelm. Pinus elliottii, commonly known as slash pine, [ 2][ 3] is a conifer tree native to the Southeastern United States. Slash pine is named after the "slashes" – swampy ground overgrown with trees and bushes – that constitute its habitat. Other common names include swamp pine, yellow slash pine, and southern Florida pine. [ 3]
Needles and young cones. P. mariana is a slow-growing, small upright evergreen coniferous tree (rarely a shrub), having a straight trunk with little taper, a scruffy habit, and a narrow, pointed crown of short, compact, drooping branches with upturned tips. Through much of its range it averages 5–15 m (15–50 ft) tall with a trunk 15–50 cm ...
Coulter pine ( Pinus coulteri ), or big-cone pine, is a native of the coastal mountains of Southern California in the United States and northern Baja California in Mexico. Isolated groves are found as far north as Clearlake, California on the flanks of Mt. Konocti and Black Diamond Mines Regional Preserve. It is named after Thomas Coulter, an ...
An old tree in Itasca State Park, Minnesota. Pollen cones in spring. Cone (scale in cm) Red pine boughs, showing yellowing and abscission of older foliage in the autumn. Tree roots anchor the structure and provide water and nutrients. The ground has eroded away around the roots of this young red pine tree.
Pinus albicaulis is the only type of tree on the summit of Pywiack Dome in Yosemite National Park. Pinus albicaulis, known by the common names whitebark pine, white bark pine, white pine, pitch pine, scrub pine, and creeping pine, [3] is a conifer tree native to the mountains of the western United States and Canada, specifically subalpine areas of the Sierra Nevada, Cascade Range, Pacific ...