Erigeron bloomeri is a nice little rayless erigeron found in dry sights in WA, OR, CA, UT, ID, and NV.
John - I shall keep a lookout for that; distinctive plant. Lovely photos.
Dr. Timothy John Ingram
Faversham, Kent, UK
I garden in a relatively hot and dry region (for the UK!), with an annual rainfall of around 25", winter lows of -10°C and summer highs of 30°C.
John, really good photos of a great little Erigeron. One imagines an ugly plant when hearing the description "rayless Erigeron", but this is a surprisingly fine species, with showy and substantial golden buttonheads that remind me of Chaenactis douglasii var. alpina (http://calphotos.berkeley.edu/cgi/img_query?enlarge=0000+0000+0407+3283) or Alpine Dusty Maidens (such a memorable common name).
When I lived in Washington State, this bright little species was often encountered in my wildflower travels. It also proved easy enough to grow, making an excellent trough subject.
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at aol.com
A very interesting plant, John! Thanks for posting it. Are the dry sites where it occurs usually at pretty high elevations?
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm
LoriThey are usually found around eastern Nevada between 3200'-7500' (1000-2300m) on rocky, semi-stable, clay slopes and ridges. The larger populations sighted with northern of eastern aspects but not restricted to these sights. I am sure seed germination is better, due to slower evaporation of spring moisture.
From the High Desert Steppe
of the Great Basin and the Eastern
Escarpment of the Sierra Nevada Range
Located in Reno/Sparks,NV zone 6-7http://www.flickr.com/photos/sierrarainshadow/
John P Weiser
An interesting plant! Each flowerhead individually reminds me of of some weeds we have here :o but the whole plant is quite different and rather attractive ;)
Rogaland, Norway - with cool, often rainy summers (29C max) and mild, often rainy winters (180 cm/year)!