Why is it called a conifer?

picture of Nguyen Minh
Nguyen Minh
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Martin Thorne
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Prise a woody cone open on a flat table and you have your answer in front of you. The seeds lie loose on the scales, bare, with no flesh or skin around them. The conifer name origin is that plain, because the word is Latin for cone-bearer. Cone-bearing trees took the name from the one part of them that does the seed work. Needles and bark had nothing to do with it, and you can prove that to yourself with any cone off the ground.

That bare seed is the whole point. Conifers sit inside a bigger group called the gymnosperms, and the word means naked seed. No ovary closes over the seed, so no fruit ever forms around it. Forest and colleagues counted 638 conifer species in 2018 out of about 1,090 gymnosperms. Cycads take 339 of the rest, gnetophytes take 112, and one lone ginkgo takes the last slot. A 2021 count put living conifers nearer 615 species, so the figure you see depends on which list you read.

The Name In Brief
Word root
Latin for cone-bearer
Seed position
Bare on a cone scale
Plant group
Gymnosperm, naked seed
Species count
Roughly 615 to 638
Not implied
Evergreen needles

Compare it with the apple tree in your yard. That tree flowers, gets pollinated, and then builds sweet flesh around its pips so an animal will carry them off. A pine skips the flower and the flesh. It builds a seed cone out of woody scales and sets the seed on the upper face of each scale, out in the open. So the conifer meaning is a job description, not a look. Carry your seed on cone scales and you get the name, and pack it inside fruit and you never did.

Cones do more than hold seed for you to find. A giant sequoia cone can keep its seed shut inside for perhaps 20 years. That is a long wait for a seed you could lose in the palm of your hand. The seeds really are that small. You would need 91,000 sequoia seeds to make 1 pound (0.45 kg), and a coast redwood that finishes 367 feet (112 m) tall starts life as a seed no bigger than a tomato seed.

Needles never entered the naming, which is lucky for you, because they vary far more than the cones do. Ponderosa pine holds its needles in bunches of three, bound together where they meet the twig. Red fir attaches each needle on its own, straight onto the twig, with no bundle at all. Both trees make woody seed cones, so both are conifers. You can sort the two from a few feet away just by checking how the needles meet the branch.

The name promises you nothing about winter foliage. People swap evergreen and conifer as if they were the same word, and they are not. A larch carries cones on its branches like any other conifer, then turns gold and drops every last needle each autumn. It is still a cone-bearer in February with bare twigs. Plenty of broadleaf evergreens keep their leaves all winter and are not conifers at all, so green in January proves nothing either way.

When you want to know what you are standing under, look for the seeds and ignore the rest of the tree. Find a cone. Open one scale and check whether the seed sits on top of it or inside flesh. That one check settles the whole question, because the conifer name origin points at the cone and nowhere else. It works just as well on a bare larch in February as it does on a pine in July.

Read the full article: Conifers: Types, Traits, and Hard Numbers

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