Which viola is this?

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Lori S.
Title: Moderator
Joined: 2009-10-27
Which viola is this?

Can anyone tell me what viola I have here? I have Viola pedata 'Bicolor' written on my map but it's sure not that!
Thanks.

AmyO
AmyO's picture
Title: Member
Joined: 2009-12-06

Lori, that looks very much like V. canadensis. Here's a phot link for it...
http://www.bing.com/images/search?q=viola+canadensis&view=detail&id=96CA...

Amy Olmsted
Hubbardton, VT, Zone 4

Lori S.
Title: Moderator
Joined: 2009-10-27

Yes, good heavens, I didn't even think of that one... It looks a little different than the Viola canadensis (shown below) that I have in the front yard though (less elongated leaf tips).  What do you think?  Maybe just variations within the species?
 

Lori
Calgary, Alberta, Canada - Zone 3
-30 C to +30 C (rarely!); elevation ~1130m; annual precipitation ~40 cm

Hoy
Hoy's picture
Title: Member
Joined: 2009-12-15

I don't know that species but I know violets can be difficult to name. You have to look at how it branches, where the leaves are attached to the stem and so forth.

Trond
Rogaland, Norway - with cool, often rainy summers  (29C max) and mild, often rainy winters (180 cm/year)!

Nicolson
Title: Member
Joined: 2009-10-30

Looks like Viola striata to me -

Mark McD
Title: Moderator
Joined: 2009-12-14

Does seem likely to be V. canadensis.  In the USDA Plant Profile pages, they recognize 4 varieties, those that occur in Western Canada would be V. canadensis var. rugulosa.

Viola canadensis, 4 varieties in USDA Plant Profiles
http://plants.usda.gov/java/profile?symbol=VICA4

Calphotos
http://calphotos.berkeley.edu/cgi/img_query?query_src=photos_index&where...

Burke Museum of Natural History
http://biology.burke.washington.edu/herbarium/imagecollection.php?Genus=...

E-Flora BC, V. canadensis var. rugulosa
http://linnet.geog.ubc.ca/Atlas/Atlas.aspx?sciname=Viola%20canadensis

I scanned a line drawing of V. canadensis from Violets of North America by Erza Brainerd, Vermont Agricultural Experiment Station, December 1921, Bulletin 224.

Someday I'll scan and post some of the fine watercolors and line drawings from this 171 page monograph that precedes Doretta Klaber's book on Violets, some of the drawings are very beautiful.  There's a separate volume entitled "Some natural Violet Hybrids of North America" also by Erza Brainerd, 205 pages, published in 1924; there are a staggering number of natural hybrids, which gives me cause to not worry about what violet species I might be looking at  ;)

Mark McDonough
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at aol.com
 

Mark McD
Title: Moderator
Joined: 2009-12-14

Nicolson wrote:

Looks like Viola striata to me -

The problem with Viola identification, many are so similar, the taxonomy is extremely confusing, and many (most) species naturally hybridize.  The photos of V. striata do look similar, but there are these narrow leafy toothed bracts along the stems, it can be seen in this drawing:
http://wisplants.uwsp.edu/scripts/bigphoto.asp?bigphoto=VIOSTR_.jpg&taxon=Viola%20striata%20Aiton&phog=Botanical%20Illustration&spcode=VIOSTR
...and they can be seen (although blurred) in this photo just to the lower right of the flower:
http://wisplants.uwsp.edu/scripts/bigphoto.asp?bigphoto=VIOSTR_STEELE.jpg&taxon=Viola%20striata%20Aiton&phog=Kyle%20Steele&spcode=VIOSTR

aha, found a page that clearly shows the lanceolate "stipules" or aforementioned toothed bracts along the stem:
http://www.missouriplants.com/Whitealt/Viola_striata_page.html
...and another showing the "stipules":
http://tenn.bio.utk.edu/vascular/database/vascular-photos-enlarge.asp?Ca...

USDA Plant Profile on Viola striata, found in eastern half of the USA:
http://plants.usda.gov/java/profile?symbol=VIST3

Mark McDonough
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at aol.com
 

Mark McD
Title: Moderator
Joined: 2009-12-14

Just thought I'd show this one, Viola palmata that shows up spontaneously in my yard (at least I think it is V. palmata).  Some of the leaf forms are very variable, so I wonder if they might be hybrids.  One photo shows flowers in late May, and then one taken in September 2011 showing the rather attractive foliage and cleistogamous-produced seed pods opening.  The day after I took the foliage photo, it was eaten to a stub by rabbits, they adore violets, thus the near total decline of many forms of V. pedata I once had.

 

Mark McDonough
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at aol.com
 

Allison
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Title: Guest
Joined: 2010-04-08

McDonough wrote:

Just thought I'd show this one, Viola palmata that shows up spontaneously in my yard (at least I think it is V. palmata).  Some of the leaf forms are very variable, so I wonder if they might be hybrids.  One photo shows flowers in late May, and then one taken in September 2011 showing the rather attractive foliage and cleistogamous-produced seed pods opening.  The day after I took the foliage photo, it was eaten to a stub by rabbits, they adore violets, thus the near total decline of many forms of V. pedata I once had.

[attachthumb=1]  [attachthumb=2]

Be glad, be very glad, the rabbits ate the violet. From the pictures, it is V. palmata. I have it and it is one of my worst weeds. Every little bit of rhizome sprouts.... every seed germinates.... OK, it's a pretty flower, but enough already! Can I borrow a rabbit?

Gardening on a wooded rocky ridge in the Ottawa Valley, Canada. Cold winters (-30C) and hot, humid summers. Nuts about native plants, ferns, pottery, my family, and Border Collies.

Allison
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Title: Guest
Joined: 2010-04-08

Lori wrote:

Can anyone tell me what viola I have here?  I have Viola pedata 'Bicolor' written on my map but it's sure not that!
Thanks.

Um, looks like V. odorata to me. V. canadensis and V. striata are both stemmed species, that is, they have obvious stems that carry the leaves alternately up the stem and flowers near the top. Both also have thinner, more delicate looking leaves. V. odorata piggy-backs on nursery plants quite a bit and is easy to acquire. A bit of a thug, though, so be warned.

Gardening on a wooded rocky ridge in the Ottawa Valley, Canada. Cold winters (-30C) and hot, humid summers. Nuts about native plants, ferns, pottery, my family, and Border Collies.

Mark McD
Title: Moderator
Joined: 2009-12-14

Lis wrote:

Be glad, be very glad, the rabbits ate the violet. From the pictures, it is V. palmata. I have it and it is one of my worst weeds. Every little bit of rhizome sprouts.... every seed germinates.... OK, it's a pretty flower, but enough already! Can I borrow a rabbit?

I've had V. palmata natively in my yard for the 24 years I've lived here; I almost never have problems with rabbits but the last few years there's been a couple rabbits around and a woodchuck family.  In all those years this violet has barely spread at all even though it does set lots of seed, just here and there the plant pops up and I always welcome them.  One person's weed (in a given climate) may be another person's delight in a different climate.  By the way, if I could loan you my wild rabbits, I'm happy to do so ;)

Mark McDonough
Massachusetts, USA, near the New Hampshire border USDA Zone 5
antennaria at aol.com
 

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