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Dendrolycopodium obscurum, synonym Lycopodium obscurum, commonly called rare clubmoss, [2] ground pine, [3] or princess pine, [4] is a North American species of clubmoss in the family Lycopodiaceae. [5] It is a close relative of other species such as D. dendroideum and D. hickeyi, also treelike.
The Royal Botanic Gardens in Sydney have published information on how to grow Wollemi pines from seed which has been harvested from helicopters from the forest trees. The majority of seeds that fall from the cone are not viable so need to be sorted to retain the plump and dark ones. These can then be sown on top of seed raising mix and watered.
Pinus torreyana is a broad, open-crowned pine tree growing to 8–17 meters (26–56 ft) tall in the wild, with 25–30 centimeters (9.8–11.8 in) long leaves ('needles') in groups of five. The cones are stout and heavy, typically 8–15 cm (3.1–5.9 in) long and broad, and contain large, hard-shelled, but edible, pine nuts . [ 4 ]
Many pine trees turn yellow this time of year because of normal “needle drop” on the inside branches
The cones thus grow over a two-year (26-month) cycle, so that newer green and older, seed-bearing or open brown cones are on the tree at the same time. Open cone with empty pine nuts. The seed cones open to 6–9 cm (2 + 1 ⁄ 4 – 3 + 1 ⁄ 2 in) broad when mature, holding the seeds on the scales after opening.
Jay Wilde . Trees with Spiky Seed Pods. If you've encountered some round, spiny balls under a tree or maybe still on the plant, and you're wondering what it could be, it's likely one of several ...
They grow on well-drained, usually sandy soil, characteristically in pure stands. [9] Longleaf pine also is known as being one of several species grouped as a southern yellow pine [10] or longleaf yellow pine, and in the past as pitch pine (a name dropped as it caused confusion with pitch pine, Pinus rigida).
A pine is any conifer tree or shrub in the genus Pinus (/ ˈ p aɪ n ə s /) [2] of the family Pinaceae. Pinus is the sole genus in the subfamily Pinoideae.. World Flora Online accepts 134 species-rank taxa (119 species and 15 nothospecies) of pines as current, with additional synonyms, [3] and Plants of the World Online 126 species-rank taxa (113 species and 13 nothospecies), [4] making it ...