Wednesday, June 25, 2014
Busy, busy, busy....
I'm also working on a lot of research for my presentations next month at the Botany2014 meeting, which will be useful for a grant proposal I'm submitting before I leave for the meeting. Along those lines, I've been processing a lot of photos from my trip to Utah last month for the American Penstemon Society meeting.
One of the more unusual species of Penstemon is P. ambiguus. We saw P. ambiguus var. laevissiumus in eastern Utah, and I have to say that the flower of this species is totally atypical for the genus. Back in 1963 Richard Straw published a paper on the pollination of this species. It had been hypothesized that it was pollinated by butterflies because of its strong resemblance to Phlox. However, Straw reported that it is pollinated by bombylid flies (bee flies).
It's truly one of my favorite species of Penstemon. The flowers are relatively small and delicate and the habit is a small shrub scattered about desert dunes or among sagebrush.
Tuesday, June 03, 2014
Beardtongue
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| Penstemon palmeri ©2014 Andi Wolfe |
Am I totally smitten by this genus? Why, yes, of course I am.....
Thursday, May 22, 2014
Penstemon petiolatus - at last!
One of the highlights for me was Penstemon petiolatus - a species that is endemic to limestone outcrops. Limestone outcrops - the kind that are weathered and razor sharp, that is. One would not want to slip and fall on this substrate - you'd be suffering some dramatic lacerations. Needless-to-say, I was very careful to be balanced and step very carefully.
My colleague, Mike Stevens, refers to P. petiolatus as "skidmark penstemon" - that's because you slam on the brakes when you spot it from the road. It truly is a stunning species, and I very much wish I had collected it back in the 1990s when I was trying to find it in Nevada. I didn't have success then, which meant that it could not be in my phylogenetic study of the genus. It is the only member of section Peltanthera subsection Petiolati, and that was the only subsection that wasn't represented in the study my lab published in 2006.
We visited the Beaver Dam Mountains of Utah to see this species. The plants were easily seen on a limestone outcrop. On the side facing the road, the plants were scattered over the north face. Climbing over the top and onto the other side, though, revealed an amazing garden of Penstemon petiolatus and some barrel cacti. What a feast for the eyes!
For more information about this interesting species, check out my Penstemon of the day: Penstemon petiolatus blog post at News from Andi Wolfe's Lab.
Monday, July 15, 2013
Penstemon payettensis
Every time I travel through the western cordillera my spirit is renewed. Penstemons are just an excuse to get a mountain fix - at least that's what it seems like sometimes. It's hard to live in a geologically-challenged area. Ohio is definitely not a mountainous state, but there are other advantages to living here. Ohio State University and Columbus are examples....
Wednesday, June 26, 2013
Penstemon fruticosus habitat
The American Penstemon Society Meeting was based in Boise, Idaho this past weekend. We had fantastic field trips, saw lots of great penstemons and interesting geology. I used to live in the area from 1975 to 1980. Boise has changed quite a lot since then, but it has grown up very well.
Thursday, September 13, 2012
Sedum lanceolatum
Another of the beautiful subalpine plants that were flowering during the American Penstemon Society meeting last June. This was spotted in the Snowy Range of Wyoming.
Saturday, September 08, 2012
Sedum rhodanthum..
One of the beautiful alpine flowers seen in Wyoming during the American Penstemon Society meeting.
Wednesday, September 05, 2012
Pedicularis groenlandica
Seen in the subalpine zone of the Snowy Mountains of Wyoming. Pedicularis is the largest genus of plants in the parasitic family Orobanchaceae. It's not clear just how many species there are, but estimates range from 350 - 700 or so. The epicenter for diversity is in the Himalayas.
What I love the most about this genus is the wide variety of floral shapes - all specific to different pollinators. The flowers of this species remind me of elephant heads.
Sunday, September 02, 2012
Penstemon whippelanus
This is an example of the alpine habitat where Penstemon whippelanus occurs. It's in the Snowy Mountains to the northwest of Laramie. We were somewhere around 8,000 feet in elevation when we first encountered P. whippelanus.
Penstemon whippelanus is in subgenus Penstemon section Penstemon subsection Humiles. This subsection is characterized by lax inflorescences in loose cymes.
Here are a few more views of this lovely plant:
Friday, July 20, 2012
Penstemon whippleanus
The alpine flora of the American west is truly beautiful, especially when it contains this gorgeous penstemon. I posted a different photo awhile ago, but this species is worth seeing again.
Thursday, July 19, 2012
Opuntia
This beautiful cactus flower was in bloom during the American Penstemon Society meeting, which was last month in Wyoming. The habitat was sage brush scrub. With those spines, one has to be careful about where one steps.
The flower is a typical representation of what my major professor labeled "mess and spoil" pollination.
Wednesday, July 18, 2012
Medicine Bow Mountains, Wyoming
The first evening of the American Penstemon Society meeting featured a lecture by Dennis Knight, a retired professor at the University of Wyoming. He gave us an overview of the geomorphology and vegetation of Wyoming, focused on the areas we would be visiting.
One of the most interesting things he talked about was the uplift and erosion of the mountains. What you see here is an erosion basin, which makes the mountains look very small. In fact, I was at 10,000 ft in elevation, looking across to the Snowy Range.
The trees are one-sided (referred to as flag trees) due to the constant wind up here, which comes from the west. In the winter the wind carries snow and ice crystals which beat up the trees big time.
It's a gorgeous landscape, and the alpine flora is well worth exploring.
Tuesday, July 17, 2012
Penstemon laricifolius var. exaltata
Last month's American Penstemon Society meeting was in Wyoming. I hadn't spent much time collecting penstemons in Wyoming - mostly just along the I-80 corridor. For the field meeting we traveled in the Snowy Range, the Laramie Mountains, and up to the Ferris Dunes.
This beautiful species is Penstemon laricifolius var. exaltata. It's about five or six inches tall. It's in section Ericopsis, which is a focus my graduate student, Aaron Wenzel. He's doing an interesting study on the phylogeography of this group of penstemons.
I was very glad to make its acquaintance last month, and to have a chance to see some beautiful country out west.
Monday, July 16, 2012
Monochrome tree
The drought that is affecting much of the USA has taken a huge toll on trees out west. In addition to the white pine bark beetle infestation, many trees are suffering from lack of water.
While in Wyoming last month, I took a photo of a dead tree against a dramatic sky. Monochrome is great for this kind of photographic imaging.
Sunday, July 15, 2012
Wyoming landscape
The Snowy Range of Wyoming is absolutely stunning. This is at Medicine Bow, one of the beautiful places I visited last month during the American Penstemon Society meeting.
I love the alpine zone for many reasons, but the stunning scenery is at the top of the list of why I enjoy spending time at high altitude. This spot is still in a transition from forest to true alpine, with a mixed flora that makes it all the more interesting to visit.
Saturday, July 14, 2012
Penstemon whippleanus
One of the lovely penstemons spotted during the American Penstemon Society meeting in Wyoming. This one was in the alpine zone of the Snowy Range, not far from Medicine Bow.
Penstemon whippleanus is one of nearly 300 species of Penstemon, and comes in a variety of hues, ranging from white to deep magenta purple. It's in subgenus Penstemon, section Penstemon. I've worked on Penstemon for more than 20 years of my career and there is still so much to learn about this interesting genus.
Friday, June 29, 2012
Ferris Dunes
Wyoming - habitat for the rare and endangered Penstemon haydenii. The day was hot, dry, winding and it was mid-afternoon. Always a challenge in those conditions.
Wednesday, June 27, 2012
Ferris Dunes
This is the habitat for one of the Wyoming populations of the Federally endangered species Penstemon haydenii. The American Penstemon Society and Wyoming Native Plant Society did a joint field trip to this site on Monday, June 25, 2012. We found P. haydenii, but not in flower. Some of the plants had been munched, and others had a few dried up flowers still on the stalks.
The site is very beautiful with Ferris Mountain as a backdrop, but quite hot in the middle of the day during the summer. The whole region is very dry this year. It was really great to be able to see this habitat - it is an amazing place to visit, but very difficult to get to.
Tuesday, June 26, 2012
Aspen Grove - ICM
During a hike in the Laramie Mountains, I found an Aspen grove that seemed about right to try some intentional camera movement technique. Usually I put a neutral density filter on for a long exposure while moving the camera, but I didn't have that with me at the time. This image was done with a fast movement at f/22, ISO 200.
Monday, June 25, 2012
Union Pacific 7770
I have a Flickr contact who always posts pictures of trains as they are running on the tracks. I was at a field site with the American Penstemon Society that was next to the crossing. When I heard the warning bells go off I ran up the embankment to get myself into position to do this photo. the combination of open sky, train color, and the colors of Wyoming make a good combo, I think.









