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  2. Evolutionary history of plants - Wikipedia

    en.wikipedia.org/wiki/Evolutionary_history_of_plants

    Land plants evolved from a group of freshwater green algae, perhaps as early as 850 mya, [3] but algae-like plants might have evolved as early as 1 billion years ago. [2] The closest living relatives of land plants are the charophytes, specifically Charales; if modern Charales are similar to the distant ancestors they share with land plants, this means that the land plants evolved from a ...

  3. Purple Earth hypothesis - Wikipedia

    en.wikipedia.org/wiki/Purple_Earth_hypothesis

    The Purple Earth Hypothesis (PEH) is an astrobiological hypothesis, first proposed by molecular biologist Shiladitya DasSarma in 2007, [1] that the earliest photosynthetic life forms of Early Earth were based on the simpler molecule retinal rather than the more complex porphyrin-based chlorophyll, making the surface biosphere appear purplish ...

  4. Timeline of plant evolution - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_plant_evolution

    Sphenophyllum was a slender climbing plant with whorls of leaves, which was probably related both to the calamites and the modern horsetails. Cordaites, a tall plant (6 to over 30 meters) with strap-like leaves, was related to the cycads and conifers; the catkin-like inflorescence, which bore yew-like berries, is called Cardiocarpus. These ...

  5. One of Earth's oldest known plants takes center stage in ...

    www.aol.com/news/one-earths-oldest-known-plants...

    A Palmer oak in Jurupa Valley is estimated to be 13,000 to 18,000 years old. The plant, which looks like a sprawling, dark green shrub, is now at the center of a development battle.

  6. Celosia argentea var. cristata - Wikipedia

    en.wikipedia.org/wiki/Celosia_argentea_var._cristata

    Celosia argentea var. cristata (formerly Celosia cristata), known as cockscomb, is the cristate or crested variety of the species Celosia argentea.It was likely originally native to India, where it was saved from extinction in cultivation by the religious significance attached to the variety by Indian, Burmese, and Chinese gardeners who planted it near temples.

  7. Ipomoea pandurata - Wikipedia

    en.wikipedia.org/wiki/Ipomoea_pandurata

    Ipomoea pandurata, known as man of the earth, [1] wild potato vine, manroot, wild sweet potato, and wild rhubarb, [2] is a species of herbaceous perennial vine native to North America. It is a twining plant of woodland verges and rough places with heart-shaped leaves and funnel-shaped white flowers with a pinkish throat.

  8. Fossil history of flowering plants - Wikipedia

    en.wikipedia.org/wiki/Fossil_history_of...

    The fossil history of flowering plants records the development of flowers and other distinctive structures of the angiosperms, now the dominant group of plants on land.The history is controversial as flowering plants appear in great diversity in the Cretaceous, with scanty and debatable records before that, creating a puzzle for evolutionary biologists that Charles Darwin named an "abominable ...

  9. Wolffia - Wikipedia

    en.wikipedia.org/wiki/Wolffia

    Wolffia is a genus of aquatic plants with a cosmopolitan distribution. [1] They include the smallest flowering plants on Earth. [ 2 ] Commonly called watermeal or rootless duckweed , [ 3 ] [ 4 ] these aquatic plants resemble specks of cornmeal floating on the water.

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