by Roy Lukes

Unusual Trilliums Add To Nature's Variety

Trillium
The large-flowered trillium has more unusual and interesting mutations, such as this multi-petalled form, than any of the other 38 species in North America.

It was 14 years ago that Charlotte and I had the great pleasure of spending an entire day sharing our spring woods, along with a few other nearby outstanding botanical areas, with one of England’s greatest botanists, Grenville Lucas, curator of the herbarium at Kew Gardens in London at the time. The day before he and a group of other notable botanists had toured the Ridges Sanctuary with me to see the awesome display of lake irises, arctic primroses and other rare wildflowers.

Never in all the years I led people in the field had I experienced a more perceptive botanist who, so help me, didn’t miss a single plant. Fortunately I had done my homework during several weeks prior to that much-anticipated day and was prepared to share the scientific name of practically every plant we came upon, because that’s precisely what Grenville had expected.

The quick outing to enjoy one of the finest remaining old-growth maple-beech-hemlock woods near our home produced a very exciting find. Grenville, with his incredibly sharp eyes, found a half dozen small trilliums whose three white petals each had a green band of leaf-like tissue running its entire length. He was so absolutely positive that he had discovered a new species of trillium that he immediately began envisioning its new scientific name, such as Trillium Lukasi, or something reflecting a combination of our last names of Lucas and Lukes.

He had already returned to England when I learned that it is not uncommon for these striking variations to occur in nature, resulting from a mycoplasma-like infection. The literature also went on to inform the reader that more than one botanist had in past years attempted to claim the plant as a new species, naturally to be named in his or her honor. Yes, Mr. Lucas was quite disappointed upon receiving the news from me, but that didn’t reduce the high praise he showered us with following his hike in our woods. Hopefully he will return another year.

The more the 38 species of trilliums native to North America have been studied the more abnormal and mutant forms of this wonderful genus are discovered. In fact it is the large-flowered trillium, Trillium grandiflorum, by far the most abundant species in Wisconsin, that produces the most of these unusual "sports." Now, with so many millions at the peak of their bloom, is the time to go exploring for some of these interesting oddities.

A four-parted trillium has occurred several times along our path to the garden in recent years. However, it is never the same "quadrillium" that blossoms a second time, always a different plant in a slightly different location. The generally accepted thought is that these four-parted plants resulted from an injury to the plant that produced some form of cell division errors in the bud the year before, and that the following year that plant would revert to being a typical three-parted trillium . It is very rare for these four-parted plants to be genetic and permanent. However they are very exciting to discover and to savor!

A small trillium plant having three sets of three leaves and no blossom has appeared in the very same spot for the second year in a row along our path through the woods to the garden. We’ve made photographic records of the strange abnormality and will be watching it carefully from year to year. Hopefully it will produce some highly unusual floral formation in the future. Other people who have had similar plants watched them become more and more bizarre by the year until finally the plants deteriorated and died.

A phone call came from our plant biologist friend, Max Martin, yesterday telling of an unusual trillium form that other people had recently discovered in their hardwoods in the central part of the county. Charlotte and I joined Max and his wife Dee to share in the excitement of seeing a truly beautiful trillium, not one but three. One of the plants appeared to be a double, or at least the two tall robust plants were growing very near to each other.

Each of the blossoms had numerous petals, perhaps two or three dozen, producing what appeared to be a lovely white rose. In fact the weight of the unusually large number of petals on each of the plants caused them to droop downward, unlike the hundreds of other normal upright trilliums growing nearby.

Frederick W. Case, Jr., in his fabulous book, "Trilliums," has found during his years of intensive trillium research, that these multipetaled forms are stable, healthy, sterile plants of great beauty. It is a known fact that gardeners and collectors anxiously seek with great fervor these highly ornamental forms and are willing to pay high prices to obtain them.

Mr. Case refers to a plant such as this as a double form, that is, a plant in which all the reproductive organs have mutated to petals. Our friend, Max, with his strong botanical background, thought it was highly unusual to have two very similar "double forms" growing within 15 feet of one another. Imagine how many acres of trillium woods one would have to explore in order to find another of these rare beauties.

Knowing that these multipetaled large-flowered trilliums are sterile but stable, likely to appear in their same extraordinary beauty in future years, will give us good reason to want to return to their highly-secluded environment next spring. Three cheers for the trilliums and their incredible forms and bmutations.


This column appeared in the Door County Advocate on 05/29/2004.
© Copyright 2004 Roy Lukes. All rights reserved.