Celebration of the Thanksgiving Day and autumn’ brilliant colours with a portrait of a native, aromatic tree.

Sassafras albidum

Sassafras albidum

Sassafras albidum – sassafras (Fam.Lauraceae) it is a medium size tree, 15-20 m tall, with an interesting branching (candelabra-like) that can be found in the wild in southern Ontario (Canada) and widespread in the States. What I think is really cool is that it has leaves that come in three shapes! On top of this, in the fall they turn yellow, going also into red and purple depending on the year.

Sassafras albidum leaves
Sassafras albidum leaves

It flowers early in the spring and by fall the ornamental black drupes are displayed on red pedicels with the same candelabra-like ramification (aka. sympodial). All parts of the plant are spicy and aromatic.

Sassafras albidum fruits
Sassafras albidum fruits

It requires full sun locations, with no particular preference for soils and it is medium to fast growing. In the wild has the tendency to sprout forming colonies; if desired as a single trunk tree the root shoots (‘suckers’) can be removed, although it also looks nice as a multi-stemmed small tree.

Before the discovery of the North American continent sassafras was extensively used by Native Americans: anthelmintic, antidiarrheal, antirrheumatic, cold remedy, venereal, tonic and so on…. The saying goes that the European explorers, after seeing its medicinal use by the Natives, brought it back to England around 1600s. Like in many other cases, they thought they found the ‘cure-all’ plant. Although not quite so, the sassafras oil was widely imported and employed in foods, medicinal products, cosmetics (root beer, sassafras tea,  filé powder, as flavouring in candies…). But after the safrol, the essential component of sassafras oil was recognized as a potential carcinogen around 1960’s, the use of sassafras oil was banned in the U.S.A. and later in Canada. Only the leaves which are said to contain little safrol, are still used to make a powder filé which is part of the renown Creole dish gumbo.

Rarely seen in cultivation here, although it can be propagated either by seeds, either by root cuttings. Germination is said to be best when the seeds are sown in the fall. Stratification is recommended for seeds to be sown in the spring (cold-moist for 3 months). I don’t know if the seeds are losing viability like its spicy cousin Lindera benzoin (as well in Fam. Lauraceae), but for just in case most seeds will be kept stratified, some will be stored dry, and a few sown right away as an experiment.

 

 

The rainy weather of this year has surely pleased all the baneberries (Actaea species). Their fruits are not indicated to be consumed for lunch!!! being poisonous, but they are so attractive. Let’s call them local gourmet foods for the soul and eyes!

All Actaea species make for superb specimens in part-shade to shaded locations of the garden. White, fragrant flowers that attract pollinators in late spring, beautiful foliage, colourful and long-lasting fruits… isn’t this enough to consider adding these native beauties to your garden?

Actaea pachypoda – Doll’s eyes, White baneberries

Actaea pachypoda

Good fortune made it that I also found a few plants of A. pachypoda with magenta coloured fruits – which is a rare form given as Actaea pachypoda f. rubrocarpa (not everyone agrees on this, but after I found them, I surely do).

Actaea pachypoda f. rubrocarpa

Actaea pachypoda f. rubrocarpa

Actaea rubra – Red baneberry

Actaea rubra

I am very pleased that I can offer them all in my Seed Catalogue – BotanyCa. They are a bit difficult to germinate sometimes (just require more time) but since when are beautiful things easy to obtain?

My kitchen has become a small scale operation – thinking fruit pies, jams and jellies?

Caulophyllum thalictroides

Caulophyllum thalictroides seeds

Caulophyllum thalictroides (Blue cohosh) blue seeds will easily pass for blueberries but unfortunately are poisonous if ingested in large quantities. That’s very improbable to happen though because what seems like a big berry is actually a single huge seed surrounded by a thin fleshy and blue seed coat.

More likely to lose a tooth or two than being poisoned!

Caulophyllum thalictroides cleaned seeds

Caulophyllum thalictroides cleaned seeds

On the other hand, Podophyllum peltatum (Mayapple) fruit it is/has been used to prepare jams and jellies. The big size fruit (hog apple, wild lemon, Indian apple), when fully ripen has a light yellow colour and a persimmon fragrance (in my opinion). It is actually the only part of the plant that’s not toxic.

Podophyllum peltatum fruits

Podophyllum peltatum fruits

To ensure good germination seeds of both species have to be placed in moist storage right away. They belong to a large category of species with hydrophylic seeds (intolerant of dry storage).

Also, both species are important North American medicinal woodland plants.

Podophyllum peltatum seeds

Mayapple seeds – enclosed in a gooey substance

PS. In case you have available large quantities of mayapple fruits to make jam, be kind and promote a sustainable harvest (always) by discarding the seeds in a nearby wooden area.

 

I think some are imagining that trying to open a business of selling wild collected seeds is a breeze – happily wandering in fields and mountains and grabbing here and there whatever comes under your eyes. Well, very far away from the truth. For example, who would think about stumbling into a massasauga rattlesnake (the only venomous snake in Ontario), while collecting Polygala paucifolia seeds!

Massasauga snake

Massasauga rattlesnake (Sistrurus catenatus)

The timing to collect Polygala is almost impossible; the fruiting/seed setting is usually low and then the seeds are equipped with elaiosomes that ants will carry away very fast. So, there is no wonder that seeds are almost never offered and, although desirable, neither are the plants! Looking at the flowers, you understand why all this is worthwhile!

Polygala paucifolia

Polygala paucifolia

My germination trials with Polygala seeds showed that dry stored seeds in the fridge, sown in the spring germinate very well, and also the seedlings are developing very well. Seeds stored moist-cold, germinate later and in a lower percentage.

Polygala seedlings

Polygala paucifolia seedlings – germination 95%; they may look small size but remember that this is a little plant

PS. Keep your eyes wide open when hiking in the rattlesnake habitat! When moving, it makes a low rattle noise to make you aware, but when standing still it is very well camouflaged and it doesn’t rattle. They give birth to live baby-snakes, finger-size but already venomous! It is designated a species at risk in Ontario – more about it on Reptiles and Amphibians of Ontario website.

Happy Canada Day!

This year we had a real Carnivorous feast in advance to the Canada Day Celebration, heading out towards the Bruce Peninsula just at the right time to see in flower, among others, the butterwort – Pinguicula vulgaris. This small vegetal carnivore will trap and digest insects with the help of its sticky, glandular, bright green leaves. But the flowers are highly attractive too, reason why a few species and hybrids are also cultivated. It is great around the pond areas, bog gardens or even a moist crevice of the rockery.

Pinguicula vulgaris

Pinguicula vulgaris

 Pinguicula vulgaris

Celebrating Canada Day includes honouring the wild, pristine landscapes we are fortunate to still have. Unfortunately, large areas of wetlands are threatened by housing developments (followed by the inevitable shopping malls), and one of the first things to disappear when a wetland habitat degrades are its carnivorous plants. The least we can do is first to be aware of their existence!

And there wouldn’t have been a celebration without something red, but there were plenty of pitcher plants (Sarracenia purpurea) and slenderleaf sundews (Drosera linearis).

Sarracenia purpurea

Sarracenia purpurea

Drosera linearis

Drosera linearis

Note: Interestingly enough, in northern regions of Europe butterwort leaves were known to have bactericidal properties; for example, traditional uses included healing cattle sores and to curdle milk.
Found more about Pinguicula, including tips for growing at this website: A WORLD OF PINGUICULA.

 

 

 

My apologies to anyone who tried to post a comment in the past couple of weeks – my new anti-spam ‘ware’ needed readjustments.

In the same idea of great little plants, this dwarf canadian primrose would have looked very well in my shade container with the Soldanellas and Haberlea rhodopensis.

Primula mistassinica

Primula mistassinica

Primula mistassinica, the Mistassini Primrose, or even better after its French name – Primevère du lac Mistassini, it’s a small size, more or less farinose primrose that was first discovered growing around the lake Mistassini in Quebec, and so it took its name. Anyone who sees it understands that it is best called by its French name: la primevère du Mistassini – it will answer looking at you with charming yellow eyes from big, pink flowers!

Primula mistassinica

Primula mistassinica flowering in Bruce Peninsula, Ontario

Best grown in part-shade or in full sun locations, if enough moisture is available. Although it looks fantastic in mass plantings it is also suitable for a trough.

 

 

Uvularia grandiflora – Large-flowered bellwort, Merry-bells

Spring is a busy time when it comes to wildflowers – lots of species start flowering almost at the same time, especially when the springtime gets condensed in a couple of months. While I try no to discriminate, some will be overlooked for now and I will highlight just a few; for example would be hard to ignore the Merry-bells! They start to flower at the same time, or a bit after Trillium grandiflorum, depending how shady the location is.

Uvularia grandiflora - just starting to flower

Uvularia grandiflora

Unlike some other wildflowers, Uvularia grandiflora is not a stranger for the cultivated woodland garden. Although not that popular as it should be, it is appreciated for its elegant habit and clusters of pendulous yellow flowers with twisted tepals, always ringing loudly for attention.

Uvularia grandiflora flower close up

Uvularia grandiflora flower close up

More than this, it is an important food source in the spring, providing nectar and pollen for bumblebees, mason bees and other bee species. It will grow to form a nice, tight clump in a few years, so it can be used solitary although it looks fantastic in large groups.

Note: Another native bellwort – Uvularia sessilifolia has smaller flowers and non-clasping leaves.

Trilix (Latin) = having a triple thread

If nothing else about wildflowers, one image can still thrill anyone  – the white carpeting of the woodland floor when Trillium grandiflorum is flowering; in southern Ontario sometime from late April to May.  Unfortunately, our car committed suicide, so I took this picture close to home in a remnant neighbourhood forest. You’ll just have to imagine this small patch of Trillium multiplied by hundreds, as it happens in the wild wooded areas.

Trillium grandiflorum

Trillium grandiflorum – Large-flowered trillium

Not that the provincial flower of Ontario needs a description; it is all about the number 3: 3-petaled white flowers (rarely pink) with 3 green sepals above a whorl of three leaves. Usually as they age the white flowers turn light pink. Unfortunately, it goes dormant by mid-summer but after the spring display we can forgive this little shortcoming.  Sometimes, individuals with green bands on the petals can be spotted – they look interesting but it’s said to be a result of a phytoplasma infection.

Mixed in with T. grandiflorum is often Trillium erectum – Wake-robin trillium, Stinking Benjamin. It displays stunning dark-red flowers above the foliage – three pointed petals framed by 3 green or reddish green sepals. The scent of the flowers is the source for the common name Stinking Benjamin – they emit odours to attract carrion flies, which are their main pollinators.

 

A short hike revealed quite a change of the woodland floor with a few ‘faces’ familiar to everyone, like the trout lily (Erythronium americanum), spring beauties (Claytonia spp.), mayapple (Podophyllum peltatum) and Trillium ready to flower but also forgotten woodland treasures such as the Blue Cohosh (Caulophyllum thalictroides).

Spring woodland flowers

 

 Caulophyllum thalictroides – Blue Cohosh, papoose root, squawroot

Blue cohosh is an impressive plant, easy to recognize in early spring by the strikingly beautiful purple, almost back shoots. The foliage will change later to green and resemble the meadow rue (Thalictrum), hence the epithet ‘thalictroides’.

‘Cohosh’ is believed to derive from an Algonquian word meaning ‘rough’, referring to the texture of the plant’s rhizome, while ‘blue’ comes from the unusually blue seeds. Also the stem and leaves are covered with a bluish film early in the summer.

Caulophyllum thalictroides shoot in early spring

Caulophyllum thalictroides shoot in early spring

The small purplish or yellowish green flowers would not qualify for a beauty contest but not the same goes for the blue seeds adorning the stems in the fall. For combinations in the garden, only imagination is the limit: a mix palette with early spring flowering native species (Claytonia, Erytronium, Sanguinaria) or for an European decor combined with: Corydalis solida, early primroses, Anemone nemorosa, Ranunculus, so on…For part-shade to shade locations, in rich humus soil.

 Other uses:

Blue cohosh was used medicinally (powder rhizomes) by various native American tribes, mainly to promote childbirth (‘squawroot’) but also for: anxiety, rheumatism, stomach cramps and genito-urinary dysfunctions. It contains a number of active compounds among which caulosaponin is a powerful stimulator of uterine contractions (under medical attention it is still used in modern herbal medicine as a natural labour-inducing stimulant).

All nature lovers in North America are familiar with the eastern skunk cabbage (polecat weed) – Symplocarpus foetidus, a true spring harbinger, a curiosity, a reason to go hiking in the woods in early spring, a conversation subject but most of all a warm-blooded plant!

Eastern skunk cabbage is the first plant to appear and flower in the frozen landscape due to its ‘central heating system’. The pointed inflorescences break through the ice and snow as heavily spotted, reddish thick-textured spathes that enclose the sexual parts (spadices).

“As my eye sweeps over the twenty or thirty plants before me, my gaze is brought into a spiraling movement when it tries to rest upon any single specimen. The deep color is warm, the sculpted form alive” Craig Holdrege

The French naturalist Jean Lamarck was the first to report that aroid inflorescences produce heat and lately this metabolic process was called thermogenesis. It was (and still is) quite a fascinating phenomenon and lots of research has been done to explain what’s happening.

Symplocarpus foetidus

Symplocarpus foetidus

Today we know that it is the salicylic acid from the plant which functions as a hormone, initiating the heating process and also the production of odours and unfolding of the spathe. In eastern skunk cabbage, the warmth from the spadix also dissipates foul smelling substances to attract flies, beetles and other pollinating insects, which are rejoicing in the warm environment created inside the spathe.

Spadix temperature is regulated depending on the ambient up to two weeks. Regardless of the near-freezing air temperature, the heat produced by the spadix can raise the temperature of its tissues 15 to 35°C above the surroundings!

Symplocarpus foetidus spadix

Symplocarpus foetidus spadix

There would be lots to be said also about the medicinal and magic uses of skunk cabbage. The one I like most is the ritual performed by the Menominee tribe of North America: they tattooed people recovering from an illness with a decoction of the skunk cabbage roots in the region where the illness had caused pain. This way the illness would not return…

Cultivation: Moist to wet soils in partial shade, great around ponds and streams. Seeds sown in moist compost and plants transplanted young or directly outside. It forms a stout, vertical rhizome and division is difficult. In nature populations are said to increase through seeds, not vegetatively, although for me it’s hard to believe the statement.
Large populations I am familiar with, form just few fruits every year, regardless of the spring weather; this implies they are largely clonal populations.

Filled out with the enthusiasm brought by a sunny, warm day (first after a long and dreary winter), we had our first hike in the forest. In the shaded areas the snow cover was still knee deep but on the warmed up slopes, underneath bare oak trees, a carpet of glossy, purple leaves was shining in the sun – the wintergreen.

Gaultheria procumbens - fruits in early springGaultheria procumbens (wintergreen, teaberry, mountain tea) – is an adorable low growing evergreen shrub native to northeastern North America usually found in pine and hardwood forests and as a part of the oak-heath forest, favouring acidic soil. It reaches about 10-15 cm high with glossy, leathery and fragrant leaves (when crushed) that will turn purple in the fall, especially in sunny areas. It has white, bell-shaped flowers (typical of fam. Ericaceae) and “berry-like” red fruits, which persist through the winter.

For the gardens it is an excellent groundcover beneath other acidic-lovers, in part-shade to full shade locations and it has received an AGM from Royal Horticultural Society.

But I don’t know if any of this would matter until you see it shining brightly one early day of spring

Gaultheria procumbens -early spring

Gaultheria procumbens – in early spring after the snowmelt

Besides its ornamental qualities as an evergreen groundcover, it has been used traditionally for making a fine herbal tea and also for the extraction of wintergreen oil (used for flavouring of chewing gum, candies, medicinal). Indigenous people used Gaultheria for medicinal purposes too, most commonly for relieving aches and pains and rheumatism. The colonists who first started to use the wintergreen leaves as a substitute for the imported tea during the Revolutionary War, also adopted its medicinal uses.

Gaultheria procumbens flowering (Killarney, Ontario)

Gaultheria procumbens flowering in Killarney, Ontario among Cladonia

Most wintergreen oil is produced synthetically today, but in traditional herbal medicine oil extracted from fresh leaves is preferred. The active ingredient of this oil is methyl salicylate, an aspirin- like compound, which like aspirin has proven anti-inflammatory, antirheumatic and analgesic properties.

Gaultheria procumbens also has wildlife value – the leaves and fruits will be consumed in the winter by various animals such as wild turkey, red fox, northern bobwhite, pheasant, eastern chipmunk….not to mention that the pollinators are indulging in its flowers in the spring.

Bumble bee on Gaultheria procumbens

Propagation: by seeds, cuttings, divisions.

Note: Gaultheria honors Jean-Francois Gaulthier – physician and botanist in the French colony of Quebec in mid-17th.

 

 

Primula parryi detail

The nice thing about Snowbird is that if you are short on time, the Aerial Tram from the Snowbird Centre it will take you up to the Hidden Peak situated at 11,000 ft. in no time. This will give you plenty of time to take pictures and botanize around. From there, one option is to explore on the trail towards the East Twin Peak. The whole ridge looks like a crevice garden planted with species adapted to the harsh environment, all of them real rock treasures.

Among these, Hymenoxys grandiflora – Old Man of the Mountain (Asteraceae), is an alpine that cannot be missed. Flower stems range from a few inches tall to 10 inches and the big yellow flower heads, are said to face east almost always. Stems and leaves are dense hairy green. Phlox hoodii – Carpet or Hood’s phlox (Polemoniaceae), is a miniature phlox growing on dry, rocky slopes from mid to high-elevations. It forms compact clumps, 6 – 8 inches high, with white to lilac flowers. The leaves are sharply pointed and woolly pubescent. It blooms from May to July depending on elevation.  

Another very bright alpine plant, Eriogonum umbellatumSulphur flowered buckwheat (Crucifereae) – grows about 12 to 14 inches tall and has flowers that are cream to bright, sulphur yellow at the top of sturdy stems.  Leaves are glabrate, green above and pubescent beneath. Although very well known, we are always happy to meet Silene acaulis. The Moss campion (Caryophyllaceae)is usually the special reward for those who climb to the mountain tops, both in North America and Europe. It is a low, densely matted, cushion-like perennial generally less than 2 inches tall. The stems are woody and densely covered with short needle-like leaves. They flower from July to August producing a multitude of small pink blossoms.

Hiking down from the Hidden Peak, in the Little Cloud Bowl, there was still a lot of snow, but we rummaged between rocks and snow knowing that we must find there an elusive Primula: Primula parryi. Parry’s primrose (Primulaceae) is a rather rare alpine beauty that likes to have wet roots, so it is often found in snow-melt areas, alpine streamsides above 10,000 ft. elevation. The thick leaves are disposed in rosettes and supposedly have an unpleasant aroma (that we didn’t noticed). The flowers are a bright magenta colour with yellow centers, produced on a sturdy stem up to 12 inches tall.

A few other interesting alpines presented in the gallery: Androsace septentrionalis, Anemone multifida and Antennaria microphylla. But these are really just a few plant portraits from an area extremely rich in wildflowers, well worth of an alpine ‘escapade’ at the end of July or in August, when there’ll be probably more chances to collect some seeds too.

 

 

 

 

Ranunculus adoneus

 Just a few more  plant images from our trip to Snowbird in the Wasatch Mountains, Utah.

 

Clematis colombiana var. tenuiloba

When hiking on the nearby trails doesn’t suffice anymore, we usually set out toward a mountain area to immerse in the richness of alpine landscapes. Two years ago at the end of July, we travelled to Snowbird, situated in the heart of scenic Wasatch Mountains, Utah. Although better known as a ski resort, during the summer, Snowbird offers an easy and comfortable access to some of the floristic gems of the Utah Rockies.

Snowbird in the Wasatch Mts.

Snowbird in the Wasatch Mts.

Wasatch Mountains stretch for nearly 200 miles from the Wellsville Mountains on the north, to the Mount Nebo on the south. Elevations range between 4,200 and 11,957 feet (at Mount Timpanogos). Along with jewel-like lakes there are pockets of lush green mountain meadows and areas of alpine tundra. Climate and microclimate differences produce a broad seasonal flowering spread. The basic rock types are made up principally of limestone and dolomite rocks. Soils of widely varying chemical composition are found throughout the area, thus providing a suitable environment for plants that require either acid soil or lime. These diverse habitat conditions make Wasatch Mountains a hotspot for plant endemism. One place where you can spend the whole day, just basking in the sun and admiring wildflowers is the Albion Basin. It is located at the top of glacially carved Little Cottonwood Canyon, above the ski resorts of Alta and Snowbird at over 9,500 feet. During the summer months of July-August there is a spectacular wildflower display in the high-elevation meadows with natural gardens of paintbrush, columbine, lupine, Jacob’s ladder, penstemons, and many more. This is where the Wasatch Wildflower Festival is held every year.

 A very interesting plant that I saw for the first time was Pedicularis groenlandicaElephant’s head (Orobanchaceae), which grows along streams and boggy mountain meadows, forming sometimes large colonies. It has fern-like leaves, mostly basal and dark green stems of about 1 foot high with flowers that look exactly like little magenta-pink elephant heads. Plants blooming for many weeks offer an image that is hard to forget. This beautiful plant is parasitic on the roots of the plants that grow in its vicinity, from which it extracts the nutrients it needs. Because of the parasitic life cycle, it would be probably very difficult to cultivate.

Another first was Aquilegia coeruleaColorado Blue columbine. It is a columbine with very long spurs and large flowers that can vary in colour from light blue to white (4 varieties in Flora of North America). Usually it grows close to wet stream areas in part-shade, but also can be found on rocky outcrops in full sun. The population we found had almost entirely white flowers. Taking the trail to Cecret Lake and then towards Germania Pass you’ll find a fabulous rocky area hosting Penstemon humilisLow penstemon (Plantaginaceae). It grows in many-stemmed clumps 4 to 12 ft. tall. The flowers are about 1.5 inches long, colored in every shade of blue from lavender to light sky blue and even magenta. Considering that there are more than 60 species of Penstemon in Utah, I have to mention at least a local endemism, the Wasatch PenstemonPenstemon cyananthus, which is common in the area, growing on dry, gravelly hillsides. Each plant produces several 2 to 3 ft. tall stems of magnificent blue flowers. You can definitely get your fix if you have agentian blue craving! We even found two very localized forms with white and pink flowers. Another day, on a hike to the Flagstaff Peak, we lost the trail that starts from the Alta Lodge, but were rewarded to find at the top of the ridge clumps of Clematis columbiana var. tenuiloba – Rock Clematis (Ranunculaceae). This is a rhizomatous clematis with aerial stems that are not viny, usually up to 10 cm tall and tufted. Leaves are typically 3-lobed and the flowers are deep pink to violet. It grows on cliffs and rocky summits, usually in open sites. It is a prized rock garden clematis, hard to find to buy, so this year I’m trying my own seeds (hope they’ll come true!).

 

 

Cypripedium arietinum

Orchids of Bruce Peninsula II

I was saying earlier that one could spot quite a few Cypripedium spp.- Lady’s slippers, at Singing Sands National Park in Bruce Peninsula. Tread lightly on the trails, watch carefully and maybe you’ll even meet the lady’s slippers fairy from the image below.

Cypripedium reginae – Showy lady’s slipper; it is usually found in fens and swamps and it’s easy to recognize after the bright pink slipper with a round opening. The pink blushing of the pouch can vary greatly in the populations, from deep pink to even, in rare cases, ‘albino’ individuals. As a complement to the flowers are the beautifully ribbed, wide leaves.

 Cypripedium arietinum – Ram’s head. Easily recognisable after the unusual shape of the slipper (lip), which also has reddish reticulations. It is flowering a bit earlier than C. reginae and parviflorum, so a visit in late May is advisable.

 Cypripedium parviflorum – Yellow lady’s slipper; it is an extremely variable species in regards to flower size and colours. Currently there are 3 varieties recognized in Flora of North America: var. pubescens, var. parviflorum and var. makasin. Personally, I can say that plants growing on drier sites have the slipper usually yellow and larger than those growing in wet habitats (most likely with reddish slipper).

I would strongly advise everyone with the desire and intention of growing orchids in their garden to try to see them first in their native habitat. High prices, of any orchids, are rightly justified by the difficulty to propagate them (mainly in vitro) and the length of time necessary to obtain a flowering size plant (5-7 years). There are many hybrids in cultivation today, which besides interesting flower colours, are said to be more adaptable and faster growing in garden conditions.

 

Polygala paucifolia - in the Bruce Peninsula, Ontario

One of my goals is to concentrate on the propagation of a few N. American native plants that would be as prized in our garden as any Chinese or S. American novelties. The hype of using native plants in our gardens and landscapes it always cut short by their difficulty to propagate (and by the lack of available seeds collections, of course). Whatever doesn’t fit into the profile of mass-production has been abandoned or perhaps not even tried in cultivation.

Besides serving an ornamental function, expanding into cultivation a few of the hard to find and/or propagate N. American species, would serve also a conservation purpose by maintaining and enriching the genetic material/ biodiversity through sexual propagation.Conservation through cultivation, (aka propagation) has already proved its importance in a few unfortunate cases of species extinct in the wild but saved, at least temporarily, in gardens sanctuaries.

 “No, no! The adventures first, explanations take such a dreadful time!” – Lewis Carroll: Alice’s Adventures in Wonderland

OK. Last year we were able to finally collect a few seeds of Polygala paucifolia –Gaywings or Fringed polygala This is a low growing plant found in dry to moist woods, in part shade. It flowers in May-June and the pink-purple flowers are quite unusual – they have 3 short and 2 long wing-like sepals and 3 joined petals with a frilly crest at the tip. Fruit is a capsule.  The seeds present an appendage – elaiosome, which is associated with ant dispersal – now you see where I’m going? A bit too late and the seeds are gone. The appendage contains lipids, proteins and starch, which serve as a reward for the ants. They drag the seeds to their nests to feed their youngs on elaiosomes and thus provide the service of dispersal. I bet they are very yummy!

 

 The germination ecology for species from Polygalaceae has not been investigated in detail. I found a study claiming that for P. paucifolia, 4 months of dry storage results in an increase in germination. Other Polygala species are known to require pre-treatments for germination. Anyway, I don’t have that many seeds, so for this year I’ll try two variants: dry storage and moist-cold stratification until sowing in the spring.

 We shall see…the seed adventure continues!

 Note:  Many spring flowers from the temperate climate rely on ants to disperse their seed  (myrmecochory – I wouldn’t try pronouncing this); from the very well known: Trillium, Hepatica, Corydalis, Dicentra…