Plant ID forum: Meadow Blazing Star (Liatris ligulistylis)

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Name: Kim
Iowa (Zone 5a)
I kill ornamentals... on purpose.
Enjoys or suffers cold winters Spiders! Critters Allowed Birds Houseplants I helped beta test the first seed swap
Region: Nebraska Keeper of Poultry Rabbit Keeper Celebrating Gardening: 2015 Garden Procrastinator Garden Ideas: Level 2
Chillybean
Jul 22, 2015 5:45 PM CST
These have gotten really tall, but I had believed they were Rough Blazingstar that I thought I had put in this spot. I tried pulling a shorter one today and it is in the ground good! I hope you can see enough detail, if not I can take another picture, they don't look to be going anywhere. :)


Here it is alongside another plant I thought was a tall native, but I am beginning to think it might be a horse weed.???


Thank you for any help.
[Last edited by Chillybean - Dec 20, 2015 10:41 AM (+)]
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Name: Dave Paul
Puna, HI (Zone 10b)
Live in a rainforest, get wet feet.
Plant Identifier
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Metrosideros
Jul 22, 2015 8:54 PM CST
Need to see mature flowers. Maybe a Ambrosia.



https://en.wikipedia.org/wiki/Ragweed
Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant Database Moderator Plant Identifier Region: Nebraska Forum moderator
Garden Sages Garden Ideas: Master Level Irises Celebrating Gardening: 2015
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KentPfeiffer
Jul 22, 2015 11:44 PM CST

Moderator

It is a Liatris of some sort. Hard to say if it's Rough Blazingstar (Liatris aspera) or another species of Liatris without a better look at it.

And yes, the plant on the right side of the second picture is a horse weed (Conyza canadensis). They do a pretty good job of blending in with blazingstars, at least until the bloom season rolls around.
Name: Kim
Iowa (Zone 5a)
I kill ornamentals... on purpose.
Enjoys or suffers cold winters Spiders! Critters Allowed Birds Houseplants I helped beta test the first seed swap
Region: Nebraska Keeper of Poultry Rabbit Keeper Celebrating Gardening: 2015 Garden Procrastinator Garden Ideas: Level 2
Chillybean
Jul 23, 2015 8:39 AM CST
Thank you for the replies. I'll get more pictures on here later. I took the photo last Wednesday and there has not been a lot of change in the blooms since then.
Name: Kim
Iowa (Zone 5a)
I kill ornamentals... on purpose.
Enjoys or suffers cold winters Spiders! Critters Allowed Birds Houseplants I helped beta test the first seed swap
Region: Nebraska Keeper of Poultry Rabbit Keeper Celebrating Gardening: 2015 Garden Procrastinator Garden Ideas: Level 2
Chillybean
Jul 25, 2015 3:02 PM CST
I finally got some new pictures. I hope they will help.
Thumb of 2015-07-25/Chillybean/72913c

Thumb of 2015-07-25/Chillybean/76cfa4

And as a comparison, this is some buds forming about halfway up a known Rough Blazingstar. The top flowers are starting to open up. You can see how slightly elongated the buds are.
Thumb of 2015-07-25/Chillybean/b1b214

This is off topic: I saw somewhere on the site that they want photos without other objects if possible. Understandable. There is a lot of green, so used my hand. What is the best way to show contrast in the photo without using something or resorting to cutting off a chunk of the plant.? I do not like cutting off native flowers to give them all a chance to go to seed and hopefully spread.



Name: Kent Pfeiffer
Southeast Nebraska (Zone 5b)
Charter ATP Member I was one of the first 300 contributors to the plant database! Plant Database Moderator Plant Identifier Region: Nebraska Forum moderator
Garden Sages Garden Ideas: Master Level Irises Celebrating Gardening: 2015
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KentPfeiffer
Jul 25, 2015 4:36 PM CST

Moderator

I'd lean more towards Meadow Blazing Star (Liatris ligulistylis) than Rough Blazing Star (Liatris aspera). The flower heads on Rough Blazingstar are usually sessile, while those of Meadow Blazingstar are more likely to be stalked, like many of those in your pictures.

Also, it's early for Rough Blazingstar to be blooming in Iowa, it's mostly a late summer/fall bloomer. Meadow blazingstar starts blooming a month to six weeks earlier (like about now).

However, the only way to be "sure" is to tear the flower heads apart and count the individual florets. Rough blazingstar will normally have 12 - 30 florets per head, while Meadow blazingstar will have 30 - 70.
Name: Zuzu
Northern California (Zone 9a)
Forum moderator Plant Database Moderator Charter ATP Member Region: California Cat Lover Roses
Clematis Irises Garden Ideas: Level 2 Celebrating Gardening: 2015 Plant Identifier Garden Sages
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zuzu
Jul 25, 2015 6:40 PM CST

Moderator

You could show contrast with a piece of white typing paper behind the parts of the plant you're photographing. It's less distracting than a hand.

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