What is this plant?

purpleflower
It’s an annual in that the rootstock stays alive, though everything aboveground dies as the weather cools. It starts to sprout in mid-summer, usually around the start of Monsoon. It blooms promiscuously in the evening, the flowers closing as the day heats up. It’s very common here and I can’t seem to nail down what it is called.

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You shouldn't ask these questions of a paranoid recluse, you know.
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9 Responses to What is this plant?

  1. terrapod says:

    Looks like a miniature hibiscus vine but then I am no expert on plants other than at killing them, no green thumb genes at all. 😉

  2. Deb says:

    I believe that is called Marvel of Peru.

  3. matt says:

    Looks like evening primrose??

  4. Charlotte Boord says:

    They are wild Four O’Clocks.

  5. I’d say both Deb and Charlotte called it right – though by different names. Marvel of Peru is in the 4 o’clock family.
    Colorado Four O’clock

  6. taminator013 says:

    It’s an annual in that the rootstock stays alive, though everything aboveground dies as the weather cools.

    Nope, that would be a perennial. With an annual the whole plant dies………

  7. Joel says:

    I thought an annual had to reseed every year. No botanist, clearly.

  8. Ruth says:

    Annuals die off completely and have to re-grow from seed every year.

    Perennials come back from the same rootstock.

    And yes, that used to confuse the hell out of me too. Especially since there are plants that only grow as annuals in my climate that are perennials in warmer climates!

    No clue on the flowers, but it looks like other folks figured it out!

  9. Joel says:

    Yup. That link to Colorado Four O’clock looks exactly like it.

    Thanks, guys!

To the stake with the heretic!