Saturday, July 23, 2011

Blazing Stars (Liatris spicata) - Butterfly Favorites

Liatris spicata - also known as
Blazing Star, Gay Feather and Snakeroot
Photo by Brad Sylvester, copyright 2011
Of course, some plants are easier to identify because I put them in my yard. For these introduced or cultivated species, we'll concentrate more on gardening information than on species identification. We have a perennial garden along the walkway that leads to our front door. We keep a wide variety of flowering plants that provide color throughout the summer. They also provide nectar and pollen for butterflies and other insects.

One of our favorites is the Liatris spicata. Like many widespread native plants, Liatris spicata has several common names as different communities encountered it and called it different things. Common names for this plant include blazing star, gay feather and snakeroot.

  • To add Liatris Spicata to your yard click here to visit BloomingBulb.com


  • The plant displays bright purple flowers beginning in mid-July. Because Liatris spicata is a late season bloomer, it is a perfect accompaniment to the early flowering bulb flowers like daffodils and the short-lived lily flowers. The shape of the flower stalks also provides a good vertical accent for the garden growing over three feet tall. The Robert W. Freckmann Herbarium site says Liatris spicata grow over 6.5 feet tall, but mine have not made it over four feet high.

    Bear in mind, however, that there are several different cultivars or varieties of Liatris spicata and each may have different blooming characteristics. I also have a white variety in my yard and it tends to start blooming a few weeks later than the purple variety, for example.

    Liatris Spicata is a favorite of bumblebees, drone flies and butterflies as its compound flowers provide a rich source of nectar and plenty of room for all.

    Blazing Stars are a favorite of butterflies and other nectar feeders
    Photo by Brad Sylvester, copyright 2011, all rights reserved

    Growing Conditions

    Liatris spicata does best in full sun and seems to be quite heat-tolerant and drought resistant. It has been as cold as 10 degrees below zero Fahrenheit for several days in a row since we put them in and the blazing star bulbs seem to have no trouble surviving in the ground. We don't water our perennial garden as just about everything there does well even in heat waves without extra care. Mulch helps to keep the moisture in the ground, as well as providing a little extra protection against the coldest temperatures.

    The Advantage of Landscaping with Native Species

    Blazing stars are native to North America and don't seem, in my yard at least, to be much bothered by insect pests. Japanese beetles and other leaf-eaters tend to leave it alone, as do chipmunks and other animals that might eat the bulbs. Blooming Bulb says it grows well in planting zones 3-9. The USDA species site says the Liatris spicata grows wild in the Eastern United States and Canada from the Gulf Coast to northern Hudson Bay.

    The fact that it is a native species means two things. First, we don't have to worry about it spreading beyond our yard as an invasive species which could become a nuisance. Second, it is well adapted to the growing conditions throughout its range and shouldn't need extra watering, chemical fertilizers or insecticides in order to grow. If it can grow in the wild without any help, it can definitely grow in your yard as long as you take good care of the soil by adding organic material on a regular basis.

    Propagation of Liatris Spicata

    The Liatris spicata will slowly spread from the area in which it's planted if it finds the spot to its liking. The roots can be dug up and separated to make a separate cluster in other locations. A good rule of thumb for bulbs is to plant them three times deeper than the height of the bulb.

    I prefer to divide and plant winter hardy bulbs in the late fall after the leaves have begun to die back, but before the ground freezes. That can be quite late in the year for Liatris spicata. You can also dig them in the early spring, before they really start growing for the year. If they are dug in the fall and can't be immediately replanted, you can keep them in a cool, dark place packed in sawdust, sand or other loose material that will keep them from getting too moist (to prevent mold or rotting). In this way you can trade them with neighbors and friends.

    Liatris spicata Seed Propagation

    Of course, the Liatris spicata, as a flowering plant, will also produce seeds and may also spread by self-seeding. If you collect the seeds, I prefer planting in the very late fall. This lets the seeds overwinter just as if they had fallen from the plant naturally. Some seeds require a period of cold-conditioning to make them viable. This is a built-in protection for plants that grow in cold climates. Without it, they might start to grow during a warm spell in the fall and be killed off by frost and freezing temperatures before they have time to establish bulbs or enough size to survive the winter. I can't say for certain whether this characteristic is present in Liatris spicata. I suspect that it does. If you prefer you can store the seeds in the refrigerator (in a sealed container to protect them from over drying) until you are ready to plant in the spring. The refrigerator (not the freezer) temperature is generally sufficiently cool to trigger the cold conditioning for seeds that require it.

    Thursday, July 21, 2011

    Creeping Fragile Fern (Cystopteris protrusa) - ID Methods and Data Collection


    Creeeping Fragile Fern (cystopteris protrusa)
    Photo by Brad Sylvester, copyright 2011, all rights reserved
    The plant species for today turned out to be the creeping fragile fern (Cystopteris protrusa), but it was a long two-day journey for me to figure it out. By the way, it’s also called Lowland Brittle Fern, Southern Bladder Fern, and Lowland Bladderfern. For me, identifying the species of the plants that grow in my yard is going to be much more difficult than identifying the animals that live in my yard as I do on my other blog: What Lives in my Yard. I could start off with very easy things like some of the big trees, the garden vegetables (whose names I can read from the seed packets), or some of the perennial flowers, but I want to develop some skills here and find reliable reference sources while I’m conducting this extended bio-survey. So today, I’m kicking it off with a fern, and detailing the process I went through to try to figure out what it was. A good field guide would have helped.
    To start with, I chose a wild plant growing in my yard, one that I believe to be native to the region. It is an attractive forest edge border plant. I definitely want to keep it growing where it is and may even think about establishing it in additional areas.
    Ordinarily, I’m going to include just one or two photos of each species that I record, because my storage space is limited. However, the first entry is going to be picture heavy, because I’m going to show a wide variety of traits that I captured in hopes of having enough information from which to draw a conclusion about this ferns’ true identity.

    Gathering Data about Plants in the Field
    Ferns along the forest edge
    Photo by Brad Sylvester, copyright 2011, all rights reserved
    First, where does it grow? As you can see from the picture to the right, it grows along the forest edge, but looking around my yard, I see that it only grows on the shady side. In other words, the woods are to the south of the ferns and the open yard to the north. That means the ferns are never exposed to bright, direct sunlight. As you can see above in a photo taken at about 1:30 pm on July 20, even at midday, the ferns are in shade or, at most, dappled sunlight. These ones happen to be near the edge of a seasonal brook, but I don’t know whether that is coincidental or not.
    Next, I look at the individual leaves and the pattern in which they grow from the stem. This photo shows that they alternate off the main stem. One grows on the left side then a little higher on the stalk one grows from the right side.  For many plants, that’s an important clue. We also notice that other than these complex leaves, there are absolutely no side branches.
    Leaf detail of creeeping fragile ferm (Cystopteris protrusa)
    Photo by Brad Sylvester, copyright 2011, all rights reserved
    These are complicated leaves. They almost resemble fractal patterns in their complexity. Eventually, when we narrow it down to some likely candidates, we should be able to match this pattern up for an exact match. We also note that although the overall shape of the frond is like a triangle, widest at the base and narrowing as it goes toward the tip, the lowermost 2-3 pairs of leaves are a bit shorter than those nearer the center of the plant breaking the true triangular shape.
    Meanwhile, from my experience in growing up as a curious young boy in the woods of New England, I know that many ferns have distinctive spore structures on the underside of each leaf. Flipping this one over, I see that it does. These little white dots will each release spores that will fall to the forest floor or drift on the wind, or the back of some furry animal, until it reaches a suitable place to grow. True ferns do not have seeds at all, they reproduce with spores. The shape, arrangement, color and size of these will also help us identify this fern.

    Sori of the creeping fragile fern (Cystopteris protrusa)
    Photo by Brad Sylvester, copyright 2011, all rights reserved

    Individual stems lead from the soil, not clustered stems
    Photo by Brad Sylvester, copyright 2011, all rights reserved
    What else can we see? At the base of each plant, a single stem emerges from the ground. These ferns don’t grow in clusters with many stems coming from a single base. Honestly, though, I don’t know what a fern’s root system looks like. Is there a bulb down there that stores energy through the winter? Are the roots like any normal plant? Let’s have a look. Carefully digging with my fingers so that I can feel the roots as I go and not damage them beyond all recognition, I find a surprise. The stem of the fern forms a perpendicular attachment to a horizontally running root.  Ah-ha! Although the fern is capable of reproducing through the dispersal of spores, it seems that might just be a back-up plan. Carefully following the “runner” or thick horizontal root, I come to another stem and another fern. Although they look like separate plants from above ground, they are, in fact, parts of the same larger plant.
    Rhizome of Cystopteris protrusa showing next year's buds
    Photo by Brad Sylvester, copyright 2011, all rights reserved
    The other end of this runner heads out toward the lawn. Let’s see what happens there. Ah-ha again! We see a number of tiny branches, also in an alternating pattern, each with a little green bud-like formation at its tip. These are new ferns waiting to break through the surface.  If I didn’t mow the edge here would the ferns keep marching out into the lawn? Would they grow even in the sunlight? Probably not in the full sun, but they’d push the edge and might do ok in the spring and fall when the sun is at a lower angle and the shady area is extended further out into the yard. The root system might extend itself this way for a considerable distance under the lawn, just hoping that one of those underground branches will break through the surface in an area where it can thrive.
    Communal Ferns
    Which brings up another interesting question: is this whole patch of ferns actually just one plant? Does it grow almost as a colony originating from one single interconnected root system? I might, in fact, only have one fern in my yard, although it covers several hundred square feet. If they are all a signal plant, that also tells us something about its vulnerability to environmental toxins. In theory, an application of a powerful systemic herbicide in one part of the yard might be transported through the runner system to kill an entire patch of ferns where only one or two ferns were actually sprayed.
    Similarly, a fungus or bacterial infection might also spread through this underground piping network to take out a whole patch of ferns fairly quickly. If we saw that happening, we might use a shovel to sever the underground runners between healthy areas of the fern patch and unhealthy areas. Then physically dig out and remove the bad part of the colony and hope that whatever it was hadn’t yet reached the rest of the root system.
    If we were chemically treating a fungus infection we’d want to make sure that we spray the entire patch rather than just the visibly affected area to prevent it from traveling through the runners to an untreated area. Mind you, this is just conjecture on my part, and would need to be tested experimentally for confirmation.
    Fern Propagation
    By the way, if we wanted to propagate this very attractive fern as a landscape border or a shady ground cover, we’d dig up and cut a section of the root and bury it in the area where we wanted it to grow. I’m not sure whether we’d need an end piece with the tiny ferns ready-formed or whether any section of the root would be viable. Again, that’s an experiment waiting to happen. I expect that the end piece with the buds would work best and produce new ferns faster and more prolifically, but any significantly sized section of the root would also survive and begin forming buds as well. Just guessing, though.
    Anyway, sorry to get distracted, but that’s part of the reason why I’m conducting this bio-survey, to discover things I didn’t know about the things that live and grow right in my own backyard. So for identification purposes we know:
    1)      It produces spores from the underside of the leaves and we have images of the sori (a cluster of spore-producing structures).
    2)      It has a single stem with alternating leaves growing from it.
    3)      We have an image of the exact shape of the leaf.
    4)      We know that it reproduces through rhizomes or underground roots and we know what those roots look like.
    5)      We know what kind of habitat it likes.
    6)      We know what part of the country it lives in.
    Is that enough to identify it positively? I think so. First, I’m going to assume that I know it’s a true fern. So let’s start climbing the taxonomy tree. Searching the Internet, I find the University of Michigan’s Sustainable Urban Landscaping Information Series (SULIS) Ferns page. I’m not doing urban landscaping, but it stands to reason that sustainable landscaping would use native plants that grow naturally in the region and habitat which is to be landscaped.
    From the information provided on the SULIS page, I’m going to rule out three of the four classes of ferns. What I have is not Psilotopsida of which the only surviving species is the whisk fern. It is not Lycopodiopsida which is comprised of spikemosses, clubmosses and quillworts. It is definitely not Equistopsida which as you might guess contains only horsetails.
    That leaves Polypodiopsida (Pteropsida for you Latin-philes). These are the true ferns with 9 sub-classes, 25-300 genera (the plural of genus), and over 12,000 species. Sigh. By the way, SULIS has a page with information about fern propagation which confirms some of my rhizome cutting conjecture, and also reminds me that fern leaves are called fronds, and the spore cases on the underside are called sori.
    Let’s get back to our taxonomy. Pteropsida is the class of true ferns within the phylum Pterophyta. I spent some time, unsuccessfully looking for an identification guide online. I’ll need to pick up a good fern field guide. Meanwhile, using Wikipedia, as much as it isn’t a primary research source, I find seven sub-classes: Osmundales, Hymenophyllales, Gleicheniales, Schizaeales, Salviniales, Cyatheales, and Polypodiales. Now I can search each of those and look for enough description to either include or exclude the fern I found in my yard from each subclass.
    Wikipedia says 80% of today’s ferns fall into Polypodiales, so let’s start there. Searching again, I find the University of Wisconsin’s  Robert W. Freckman Herbarium page on fern identification, which drills down a bit lower than Polypodiales. Out next choice is between Families. I think my fern is a member of the Dryopteridaceae family, but it’s clear that to go any further, I’m going to need a vocabulary lesson to figure out what terms like rupestral, scandent, dictyostelic, glabrous, pinnatifid, acrostichoid, and too many others to list all really mean. The photos on the site are not sufficient for clear cut identification.
    So let’s call it day and come back to this one another time.
    Fern Identification Day 2
    I came back to the problem of identifying this fern a day later with a fresh idea for searching for online identification guides and it bore fruit immediately -- quite unlike ferns themselves… I finally found a fern identification key at the University of Wisconsin – Green Bay.  It’s on the Herbarium page of the Cofrin Center for Biodiversity. As it asks about specific characteristics being present or not, it includes links on the key terms describing what each is and showing photographic examples. Exactly what I need. A virtual Fern Identification for Dummies. Consequently, it also helps me to learn the terms by using the built-in glossary. This will be my primary resource for fern identification.
    At Last! Creeping Fragile Fern
    By drilling down through their binary identification system I believe the fern I photographed to be of the genus Cystopteris. One species of that genus, Cystopteris protrusa commonly named the creeping fragile fern, seems to be the most likely candidate as it has some keys distinctions from other Cystopteris species.
    1) The creeping fragile fern prefers to grown on soil rather than rocks.
    2) It is the only species of the Genus in which the rhizome extends out past the last frond and contains buds for the following year’s fronds.
    3) Its range includes New England and it is quite common.
    It is the second characteristic which, to me nails the identity as Cystopteris protrusa. You’ll remember that I remarked about the rhizome extension and underground buds. This turned out to be a good exercise, a strong learning experience, and it really highlights the need for thoroughness in the field. I literally had to dig a little deeper to find the characteristic that led me to a good identification on this species.  Genuine curiosity is your best tool for exploration.
    At present, I am not abotanist. I've had zero training. I am however, very curious, and quite persistent. In a year from now, I'll be pretty darn good at idenitfying plants by site in the field. If you faollow along with me on this blog and put what you lean into practice, you just might be too.
    Cystopteris protrusa Propagation Revisited
    By the way, based on the fact that we know the buds represent the following year’s ferns, I expect that to propagate the creeping fragile fern, this terminal portion of the rhizome would need to be transplanted. This may, or may not, hold true for other species of the genus.

    Monday, July 18, 2011

    Wintergreen (gaultheria procumbens)

    Wintergreen or eastern teaberry (Gaultheria procumbens)
    Photo by Brad Sylvester, copyright 2010, all rights reserved
    I'm going to start off the list of plants that grow in my yard with one that was a very pleasant surprise when I moved here. Wintergreen (Gaultheria procumbens), sometimes called Eastern Teaberry, is one of the edible native plants that lives in the woods in my yard. It is very plentiful, growing in the shade of the forest canopy. Wintergreen is both edible and potentially deadly poisonous, so please read the information contained in the linked article. It happens to be one of the few plants about which I've already written for Examiner.com so I'm going to refer you to the link below for what I wrote there which includes medicinal properties and poison warnings.
    Additionally, I will tell you that this spring, 2011, seemed to be a very good year for new wintergreen plants. The reddish young leaves of new plants seemed to be springing up everywhere.

    To date, I haven't found any evidence of the plant being eaten by anything (other than myself). It seems to be pretty well left alone by insects and other herbivores. It grows in normal to moist soil conditions in the shade or very dappled sunlight. It gets it's name, as you might guess, because it stays green and keeps its leaves all year, through even the coldest of New England winters. Given the low light environment in which it lives, it must find it more economical of energy and nutrients to preserve its leaves through winter than to try to grow new ones every spring. Keeping the leaves through winter, of course, also gives wintergreen an advantage in the spring time, it can take advantage of the bare canopies overhead while the sun's indirect rays are still relatively weak in the early part of the year.

    I recall that in grade school many years ago in southern Vermont, when we learned how to make little terrariums, wintergreen was one of the plants we sought. It needs little light, can live in humid and moist environment, was very slow growing, and of course, doesn't drop its leaves and look dead in the winter. As a bonus, depending upon the plant you found, it might also have a bright red berry to give the terrarium a little bit of color.

    Quick Facts about Wintergreen (Gaultheria procumbens)

    Edible: Yes, in small quantities. Can be fermented to make a tea.
    Life cycle: Perennial, evergreen
    Propagation: Spreading underground rhizomes, less often by seeds contained in berry
    Other uses: Essential oil, medicinal uses (See linked article above for details)
    Range: Eastern North America from the Gulf of Mexico and north through out eastern Canada (from the USDA website)
    Native or introduced: Native, undomesticated
    Poisonous: Yes, in quantity. Wintergreen essential oil has been known to cause fatalities through both ingestion and excessive topical use.

    Introduction

    Hello and welcome to "What Grows in my Yard?" I recently began a project to to identify every living animal that lives in my yard and have decided to expand that to cover every living plant as well. Well, technically, more than just plants as, I guess, fungus is in its own category now and doesn't fall into the plant kingdom.

    Anyway, the yard consists of 5.25 acres in Southern New Hampshire, about 30 miles from the Seacoast and at about 800 feet in elevation on average (some higher, some lower). About 1 acre is consumed by the house, driveway, lawn and vegetable gardens. the rest is forested. It's generally a mixed deciduous/ coniferous forest, but there are a couple of areas with very small pine barrens (perhaps 100 feet by 100 feet where very little other than pine trees grow and the forest floor is covered inches deep in pine needles. There are also two seasonal streams that tend to run dry around mid-July each year, and a small area that stays muddy and wet all year round.

    From a plant habitat point of view, it's quite varied. When you add in all the domestic plants that we've added to the landscaping around the house, there's a huge number of different plant and fungus species here.

    Let me be clear right up front. I am not a botanist or a plant expert, by any means. I've spent decades in and around the forests of New England and know at least common names for a fair variety of plants, but for most I'll be doing research to try to identify the plants that I find, much like the way I do for animals on my What Lives in My Yard Blog.


    On that blog, I expect to identify around 1000 species of animals that live in my yard. If I had to guess how many plant and fungus species grow in my yard, I'd guess about the same number.

    I'll be breaking the entries into two categories, native and introduced. Introduced will be used for anything that I have manually added to the yard. An apple tree, pole beans, daffodils, chives, and so forth whether they are native to the region or not.

    I'll also detail which plants are edible, poisonous, or have other uses, relying on both my own experience and the research I'll do for each one. I'll relate any interesting information about the plant (like how to make birch beer and maple syrup), its formal taxonomic classification, and I'll note any insects or animals that appear to be feeding on it or using it as a home. I'll also note and apparent symbiots or parasites (fungus growing on a tree trunk, for example). For domestic or introduced plants, I'll also include a little about the care and propagation of the plant.
    Sooner or later, I'll cover every plant and fungus that's growing in my yard. That'll include all of my perennial flowers and herbs, annual vegetables and flowers, mushrooms, trees, grasses, berries bushes, mosses and everything else.

    Additionally, since I use a greenhouse, hydroponics, and various other methods and equipment to grow and propagate plants, I'll offer my experience with these as well. 

    If any or all of that sounds interesting, I urge you to use one of the follow this blog functions found in the side panels to subscribe.