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GrrlScientist is an evolutionary biologist and ornithologist who loves to write about "E3": evolution, ethology and ecology and the subtle relationships between these fields, especially in birds.

GrrlScientist's new blog can be accessed through any one of these five domain names: GrrlScientist.net, grrlscientist.org, grrlscientist.info, grrlscientist.com, or grrlscientist.us (keep in mind that, in the future, these domains may point to different places). GrrlScientist's current blog home is at her NATURE Network blog, Maniraptora.

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« Mystery Bird: Wilson's Snipe, Gallinago delicata | Main | TEDTalks: Why We Have Virus Outbreaks and How We Can Prevent Them »

Manhattan Dahlia, 2

Topic Categories: Image of the DayMy PicturesNYC Through My EyeNature
Posted on: May 27, 2009 2:59 PM, by "GrrlScientist"

tags: , , , , ,

Dahlia, Dahlia hybrid.

Photographed on Manhattan's Upper West Side
on West 81st street as I was walking to the post office.

Image: GrrlScientist, 26 May 2009 [larger view].

Dahlias comprise a genus with at least 36 species of bushy plants that are native to the western regions of Central and South America. There are more than 20,000 named cultivars of these plants in captivity, which are the result of both hybridization and chromosomal duplication: Dahlias are octoploid -- possessing eight copies of each homologous chromosome, whereas most plants have only two copies of each chromosome.

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Comments

1

We could have a "what's the mystery insect" contest with these photos, couldn't we?

Posted by: Bob O'H | May 27, 2009 3:29 PM

2

okay .. i'll name the insects "bob1" and "bob2" ..

Posted by: "GrrlScientist" | May 27, 2009 3:40 PM

3

What are their identifying marks?

Um, perhaps I shouldn't ask that.

Posted by: Bob O'H | May 27, 2009 3:44 PM

4
...native to the western regions of Central and South America.
And western Mexico as well. Quite a few popular garden and greenhouse ornamentals originated in Mexico, such as cosmos, zinnias, salvias (including many hummingbird-pollinated species and varieties), begonias, coral bells (Heuchera), bat-face cuphea (C. llavea), shell flower (Tigridia pavonia), and the ever-popular poinsettia. It's cool to (sometimes literally) stumble across a familiar-looking flower while birding across the border in Sonora or Chihuahua and realize it's a wild cousin of one of my favorite garden plants.

Posted by: Sheri Williamson | May 28, 2009 3:58 AM

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