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Author Topic: Bright red sprouts! Is this a hemiparasitic species ??  (Read 611 times)
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Weiser
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« on: November 12, 2010, 08:46:11 PM »

I photographed these new shoots emerging at the base of a clump of Whitebark pine(Pinus albicaulis). The location is Alpine County, CA, USA. On the trail from Carson Pass to Winnemucca Lake. We had just passed Frog Lake the elevation was in the region of 8600' (2 621m). I feel it may be a hemiparasitic species due to it's late emergence. This plant was just emerging in late July.
The bright red caught my eye right away.

The second shot is of a sprout that is in leaf and bud.


* 4881155259_72c0140d85_z.jpg (275.43 KB, 640x425 - viewed 79 times.)

* 4881157791_dcc2462af9_z.jpg (259.64 KB, 640x425 - viewed 81 times.)
« Last Edit: November 12, 2010, 08:53:19 PM by Weiser » Logged

From the High Desert Steppe
of the Great Basin and the Eastern
Escarpment of the Sierra Nevada Range
Located in Reno/Sparks,NV  zone 6-7
http://www.flickr.com/photos/sierrarainshadow/
John P Weiser
Lori S.
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« Reply #1 on: November 15, 2010, 08:06:02 PM »

It puts me in mind of Asclepias... the leaf venation, particularly.  I can't tell definitively from the photos if the leaves are opposite or not... but I get the sense that they are opposite... ?
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Lori
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm
Hoy
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« Reply #2 on: November 16, 2010, 02:28:50 PM »

Weiser, your plant looks like plants here when sprouting still covered by snow. When the snow cover melts the shoots have exactly this red and yellow color. Maybe a late melted heap of snow there?
I do not think it is a hemiparasitic plant though, but I can't swear on it.
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Trond
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RickR
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« Reply #3 on: November 16, 2010, 05:51:29 PM »

It puts me in mind of Asclepias... the leaf venation, particularly.  I can't tell definitively from the photos if the leaves are opposite or not... but I get the sense that they are opposite... ?

But the flower buds don't seem to be arranged in umbels...
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Rick Rodich    zone 4a.    Annual precipitation ~24 inches
near Minneapolis, Minnesota, USA
Lori S.
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« Reply #4 on: November 16, 2010, 08:19:37 PM »

Okay.  Hmmm, Apocynum, was my next guess... but those sheathed emerging stems are curious and I don't think they fit with dogbane.   
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Lori
Calgary, Alberta, Canada - Zone 3
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« Reply #5 on: November 16, 2010, 10:18:35 PM »

Thank you all for taking a stab at this. I wish I had picked a leaf to see if it had milky sap. With all the hiking I do I will probably run across this one again. I have a good freind who takes a lot of photos for the USDA Data Base, the Jepson Manual and Calflora I will see if he is willing to venture a guess. Again thank you all for your input.

John
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From the High Desert Steppe
of the Great Basin and the Eastern
Escarpment of the Sierra Nevada Range
Located in Reno/Sparks,NV  zone 6-7
http://www.flickr.com/photos/sierrarainshadow/
John P Weiser
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« Reply #6 on: November 18, 2010, 07:00:14 PM »

Lori, Hoy, Rick
I think I have an ID on this one! Smiley Polygonum davisiae

http://www.plant-materials.nrcs.usda.gov/pubs/orpmcot9936.pdf
http://ucjeps.berkeley.edu/cgi-bin/get_JM_treatment.pl?Polygonum+davisiae
http://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=6747
http://www.flickr.com/photos/found-behind-the-ranges-over-yonder/219573474/
http://calphotos.berkeley.edu/cgi/img_query?where-genre=Plant&where-taxon=Polygonum+davisiae
(note: pay special attention to the second to last photo on the Calphoto link as it shows the red sprouts emerging)
« Last Edit: November 18, 2010, 10:15:11 PM by McDonough » Logged

From the High Desert Steppe
of the Great Basin and the Eastern
Escarpment of the Sierra Nevada Range
Located in Reno/Sparks,NV  zone 6-7
http://www.flickr.com/photos/sierrarainshadow/
John P Weiser
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« Reply #7 on: November 18, 2010, 10:14:19 PM »

Oh man, I was chasing this down myself, I love a good mystery, and was exploring both Polygonum and Rumex, and believe it or not Paeonia californica (based on John's 1st photo, but the second photo shows more developed leaves which told me it wasn't that, but one starts imagining things when doing these ID puzzles).

Great detective work John!  The next to last Calphoto showing the sprouts of Polygonum davisiae nails the ID.
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Mark McDonough
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at charter.net
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« Reply #8 on: November 19, 2010, 10:43:24 AM »

Yes, Polygonum make sense. I do not know the American species but it reminds me of those growing here. The commonest is P. viviparum (syn. Bistorta vivipara) with edible rhizomes and bulblets.
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Trond
Rogaland, Norway - with cool, often rainy summers  (29C max) and mild, often rainy winters (180 cm/year)!
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