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Coniferous plants have flowers?
Hi All,
My Rosemary plant has flowers! https://ibb.co/p2yhHJX Coniferous (pine trees) plants have flowers? What am I missing? They are awfully pretty! -T |
Coniferous plants have flowers?
In article
writes: T wrote: Hi All, My Rosemary plant has flowers! https://ibb.co/p2yhHJX Goody. Pretty, eh? Mine blooms every winter, although, not as profusely as the one pictured. Coniferous (pine trees) plants have flowers? Yep. That's where pinecones come from. What am I missing? Maybe you aren't looking closely enough. They're inconspicuous but the yellow pollen certainly isn't: It blankets _everything_ outdoors down here every winter. Had a ~40' white pine in our front yard. It's been gone for about 2 years, and I think there is still some pollen on my truck. -- Drew Lawson | I'd like to find your inner child | and kick its little ass |
Coniferous plants have flowers?
T wrote in :
Hi All, My Rosemary plant has flowers! https://ibb.co/p2yhHJX Coniferous (pine trees) plants have flowers? What am I missing? An elementary education in botany, perhaps? Looking at the general form of a plant is generally not very helpful in understanding its relation to other plants. Traditionally we looked at their reproductive processes and morphology. Today genetic (DNA) analyses are used. These mostly refine the older work, but make significant correctlons. What follows is a _very_ sketchy family tree relevant to your question. All plants - many groups (inluding mosses and ferns) that do not use seeds to reproduce - Seed-bearing (flowering) plants - - Gymnosperms ("naked seeds") - - - several groups that I'm not going to get into - - - Cedars, junipers and bunch of others - - - Pines, spruces, firs, etc;. "Conifers". They have two kinds of cones: one that produces pollen, and the other produces ovules that receive the pollen. The latter form the familiar seed cones when pollinated. - - Angiosperms ("enclosed seeds", "flowering plants" - - - Monocots (seeds have one cotolydon) - - - - grasses - - - - orchids - - - - iris, tulips, and others - - - - more groups - - - Dicots (seeds have two cotolydons) - - - - many groups that include most of the plants with showy flowers, each group identifier by a their own particular flower structure. - - - - mint family (have a particular flower structure) - - - - - rosemary Hope this makes some sense. If I've used unfamiliar terms, check Wikipedia. They are awfully pretty! Yes, they are. |
Coniferous plants have flowers?
On 4/27/19 11:31 AM, Alfred Falk wrote:
T wrote in : Hi All, My Rosemary plant has flowers! https://ibb.co/p2yhHJX Coniferous (pine trees) plants have flowers? What am I missing? An elementary education in botany, perhaps? Looking at the general form of a plant is generally not very helpful in understanding its relation to other plants. Traditionally we looked at their reproductive processes and morphology. Today genetic (DNA) analyses are used. These mostly refine the older work, but make significant correctlons. What follows is a _very_ sketchy family tree relevant to your question. All plants - many groups (inluding mosses and ferns) that do not use seeds to reproduce - Seed-bearing (flowering) plants - - Gymnosperms ("naked seeds") - - - several groups that I'm not going to get into - - - Cedars, junipers and bunch of others - - - Pines, spruces, firs, etc;. "Conifers". They have two kinds of cones: one that produces pollen, and the other produces ovules that receive the pollen. The latter form the familiar seed cones when pollinated. - - Angiosperms ("enclosed seeds", "flowering plants" - - - Monocots (seeds have one cotolydon) - - - - grasses - - - - orchids - - - - iris, tulips, and others - - - - more groups - - - Dicots (seeds have two cotolydons) - - - - many groups that include most of the plants with showy flowers, each group identifier by a their own particular flower structure. - - - - mint family (have a particular flower structure) - - - - - rosemary Hope this makes some sense. If I've used unfamiliar terms, check Wikipedia. They are awfully pretty! Yes, they are. It thought conifers were all monocots: parallel veins on their leaves (needles). Double checking, Rosemary is actually a dicot. Its flowers have five pedals. (Monocots have three; dicots have four or five.) I am going to have to count the pedals! So Rosemary is not actually a conifer. Looking up conifers, they are not classified are either monocot or dicot. It was a major evolutionary step when flowering plants came along. Conifers are not classified as "angiosperms" (flowering plants), so they don't actually have flowers. |
Coniferous plants have flowers?
On 4/27/19 8:16 AM, Drew Lawson wrote:
Coniferous (pine trees) plants have flowers? Yep. That's where pinecones come from. Nope. Pine trees are not classified as "angiosperms" (flowering plants), so they don't actually have flowers. |
Coniferous plants have flowers?
On 4/26/19 6:01 PM, wrote:
Coniferous (pine trees) plants have flowers? Yep. Hi All, I looked this up. Extremely interesting and explains all the yellow pollen everywhere. http://jakesnatureblog.com/2017/12/0...hey-reproduce/ Pine trees have two cones. Male and female. No flowers. Pine trees are "wind" pollinated. The male cones are typically on the lower half of the tree and the female one (the ones that eventually develop into classical "pine cones") are typically on the upper half of the tree. This is to assist cross pollination and discourage self pollination. Here is a picture of a male pine cone. https://i1.wp.com/jakesnatureblog.co...size=676%2C448 I took economic botany in college. It was the most fascinating course I took. I still remember it. "Flowers" were a YUGE evolutionary improvement over wind pollination. Requires far less pollen for one thing! Just some trivia. You can tell a Ponderosa and a Jeffrey pine tree by the cones. The Ponderosa's cones thorns curve outward and are painful to pick up. The Jeffery's Pine cones thorns curve inward, and are not painful to pick up. Both trees smell like butterscotch. Yes, I am a tree smell-er, but not a tree hugger. -T |
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