This is Fruhlingsmorgen. It's very fragrant.
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Hope that helps.

Andrea

The dark anthers in the center are distinctive and a big part of the appeal.

Well . . . that looks like the other photos I have seen of Fruhlingsmorgen, but the rose at the IBG has a LOT less pink . . . in fact, it doesn't have any pink at all right now (in May). The pink edges only show up in the autumn bloom. I don't think it has dark anthers like that, either. It certainly looks more like 'Fruhlingsgold' at the moment. Yet Fruhlingsgold is described as a much larger plant, and I haven't seen any reference to its ever having pink edges. :( Wish I could figure out how to post a photo on here, but I'm not quite that computer-literate.

Could it be Fruhlingsduft which has more pink than Fruhlingsgold? HMF indicates that it's a larger plant up to 10' x 6' but otherwise appears to resemble your description.

Sue

Here is a link that might be useful: Fruhlingsduft

Sounds like Fruhlingsduft, to me, though it's not a true single - I think it usually has around 10 petals. What a lovely rose it is!

My Fruhlingsgold is light yellow, never pink, and is non-remontant.

One of the IBG staff people finally managed to unearth an old map from 1990, and we found this rose on it! Hooray! It is . . . . Bloomfield Dainty. Not sure how it ended up with a sign reading "Fruhlingsmorgen"; probably someone was just giving it their best guess. Thanks so much, everyone, for your helpful comments! Very kind of you.

I'm still not completely convinced: my son is home this weekend, so I'll see if he can help me post a photo.{{gwi:269794}}

Here's a close-up. These photos were taken in the spring; the pink edges only show up in the fall, when the weather is cooler. Does anyone who grows 'Bloomfield Dainty' know whether this is the correct rose? Or perhaps now that you have photos, does anyone recognize it as a different rose altogether? (The record-keeping on plants at the IBG has been very, um, spotty.)

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Boisemom has several such queries on the Rose ID forum awaiting you attention.

(Some more pics of foliage and whole plants might help there.)

Thanks, michaelg! I'll try to add some more photos over there. I hadn't been able to figure out how to add photos at all until just today, when my 16-year-old finally found some free time to help his computer-challenged mom. :) If anyone grows old roses and would be willing to take a look at those other roses on the ROSE ID forum, I would really appreciate it. The IBG asked me to help them ID their roses because I grow a few old roses myself and know a little about them . . . but this task is 'WAY over my head!