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August 21, 2007 : Pinaropappus roseus

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Keywords: Asteraceae | Pinaropappus roseus (Less.) Less. | San Miguel de Allende, Mexico

Pinaropappus roseus

Thanks to David Tarrant are once again in order for today's photograph from Mexico. Appreciated as always, David.

Despite a specific epithet (roseus) that translates to “pink”, the common name often used in the USA for this species is white rocklettuce. Pink dandelion is also sometimes used, as is white dandelion. Curiously, it seems the plants growing in the northern part of its range (south-central USA) tend to have little pink colouration (e.g., these photographs from the Lady Bird Johnson Wildflower Center), while those growing in the southern part of its range (central Mexico) are quite pink (e.g., today's photograph and this other photograph from Mexico).

Posted by Daniel Mosquin at August 21, 2007 7:00 AM

Comments

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Are the variations in color due to change in soil conditions or other environmental conditions?

Posted by: crispie at August 21, 2007 7:45 AM

I'm afraid I don't know - I'm drawing an inference from the geolocated photographs I've seen online, so it may not even be a valid conclusion.

Posted by: Daniel Mosquin Author Profile Page at August 21, 2007 2:02 PM

Could it be perhaps that there seem to be two varieties, foliosus and roseus? I cant seem to be able to find pictures of either, however.

Posted by: Joe at August 21, 2007 11:54 PM

Please share your comments about the photograph(s) and accompanying write-up. Telling a story about the subject of the photograph(s) is also much appreciated! If you have a gardening question, the best place to ask is on the UBC Botanical Garden Forums. Thank you!

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