The gymnosperms (/ˈdʒɪmnəˌspɜːrmz, -noʊ-/ JIM-nə-spurmz, -⁠noh-; lit. 'revealed seeds') are a group of seed-producing plants that includes conifers, cycads...

sitchensis". Gymnosperm Database. "Doerner Fir – Tallest Douglas Fir". Retrieved 2013-02-25. "Pseudotsuga menziesii var. menziesii". Gymnosperm Database....

vary widely despite still being considered part of the gametophyte. In gymnosperms, the male gametophytes are produced inside microspores within the microsporangia...

Jurassic and Cretaceous Periods. It is characterized by the dominance of gymnosperms and of archosaurian reptiles, such as the dinosaurs; a hot greenhouse...

Softwood is wood from gymnosperm trees such as conifers. The term is opposed to hardwood, which is the wood from angiosperm trees. The main differences...

referred to as the subclass Dicotyledons into two tribes, Gymnosperms and Angiosperms. In the gymnosperms (or Gymnospermae) Lindley included two orders, the...

Angiosperms are distinguished from the other seed-producing plants, the gymnosperms, by having flowers, xylem consisting of vessel elements instead of tracheids...

arizonica (Arizona pine, pino de Arizona) description – I The Gymnosperm Database". The Gymnosperm Database. Retrieved 9 August 2018. Earle, Christopher J....

(which comes from angiosperm trees) contrasts with softwood (which is from gymnosperm trees). Hardwoods are produced by angiosperm trees that reproduce by flowers...

of the familiar land plants, including the flowering plants and the gymnosperms, but not ferns, mosses, or algae. The term phanerogam or phanerogamae...