« Previous Day: Lonicera crassifolia |
Main
| Next Day: Geum triflorum »
Feb 8, 2010: Pandanus tectorius
Feb 9, 2009:
Ludisia discolor
Feb 9, 2007:
Leptospermum rotundifolium
Feb 9, 2006:
Eriophyllum lanatum var. lanatum
June 7, 2006 : Pseudotsuga menziesii var. glauca
Interested in subscribing? Visit the main Botany Photo of the Day page and fill out the form in the upper right corner!
Keywords: Pinaceae | Pseudotsuga menziesii (Mirbel) Franco var. glauca (Mayr) Franco | Eldorado Canyon, Colorado
Kind thanks to hamadryad of Morrison, Colorado for this image submitted via the BPotD Submissions Forum (original thread containing this image and another).
As hamadryad notes in what she wrote to accompany the photographs, both male (pollen-producing) and female (ovule-producing) cones are present in the photograph, the female cones being the pink structures which will eventually harden, colour brown and point downwards over time.
An extensive account of the biology of Rocky Mountain Douglas-fir can be found on the Gymnosperm Database web site (you can also read more about the genus Pseudotsuga).
Art resource link: In a discussion on the garden's discussion forums (this thread), the web site of (former) woodcarver Frederick Kay was recommended: Arbutus Gallery.
Posted by Daniel Mosquin at June 7, 2006 12:00 AM
Comments
...or read recent comments on all BPotD Entries
Posted by: Chris Graham at June 7, 2006 10:05 AM
Chris
I think the source of confusion may be that this is a picture of Pseudotsuga menziesii var. glauca, so it is not the typical Pacific coast variety you may be used to seeing. The Rocky Mountain or "Blue" Douglas-fir (var. glauca) has shorter, bluer, needles that tend to stand up more on young shoots (hence the resemblance to Abies). If you look closely at the immature cones, you can make out the protruding trident bracts that are a hallmark of the genus. I have seldom seen this variety planted along the west coast, so that may also be a source of its unfamiliarity.
Posted by: Matt at June 7, 2006 1:22 PM
The picture is before the female cones turn down towards the ground, that is confusing as well. A dead give away is how the needles are arranged, Abies is plannar, if you look at the picture you see that the needles are more of a spiral arrangement
Posted by: Eric at July 1, 2006 12:33 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!
Post a comment
XML Feeds: Atom | RSS 2.0 | RSS 1.0 | What is RSS? | RSS Tools
Botany Photo of the Day and associated images by UBC Botanical Garden staff are licensed under a Creative Commons License. Images and text by non-UBC contributors are copyright the respective photographers / authors (but often have Creative Commons licenses if contributed via Flickr).
About Botany Photo of the Day | Submit Your Photos via Flickr | Submit Your Photos via UBCBG's Discussion Forums
Botany Photo of the Day is a project of the UBC Botanical Garden and Centre for Plant Research, located in Vancouver, British Columbia Canada. UBC BGCPR is a department of the Faculty of Land and Food Systems within The University of British Columbia.
Hello. I'm a bit confused, as the genus species indicates, this is a doug fir.. though it really looks like an abies.. no usual traits shown in this photo.. needles don't even look like the same genus.