Inflorescence detail from image below.
Grand Canyon National Park: Along Greenway Trail
between Yavapai Rooms and Canyon View Information Plaza.
7 July 2002.
As upper image, but showing immature flower heads in addition.
Habit and habitat.
Same time and location as prior images.
This group of thistles was destroyed within two weeks of these images.
This alien species can be quite invasive.
Blooming and fruiting heads.
Grand Canyon National Park: Grand Canyon Village, on bank
of drainage ditch near Mule Barn, at entrance to parking lot D.
23 August 2002.
Photographs copyright © Lee Dittmann.
This page last revised 11 April 2009.
| Northern Arizona Flora | |||
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