0 0 8 5 0 Trientalis
borealis 0 0 8 4 0 Acer saccharum 0 0 8 4 21 Betula alleghaniensis 0 0 2 10 22 Fagus grandifolia 0 0 2 5 8 Tsuga canadensis 0 0 0 9 0 Osmunda claytoniana 0 0 0 5 0 Carex tuckermanii 0 0 0 5 i Matteuccia struthiopteris 0 0 0 2 86 Impaliens capensis 0 0 0 2 21 Fraxinus nigra 0 0 0 0 9 Milium effusum 0 0 0 0 9 TABLE 3.--Vernal pools in PIRO were classified into five types based on depression characteristics, canopy closure and vegetation community.
Remnant tamarack bog species of the herbaceous layer include Maianthemum canadense, Trientalis
borealis, Osmunda cinnamomea, Carex trisperma, and Rubus hispidus (northern raspberry).
Meanwhile Rubus saxatilis, Scorzonera humilis, Calamagrostis epigejos, Pteridium aquilinum, Trientalis
europaea, Peucedanum oreoselinum, Solidago virgaurea, Equisetum hyemale, Rubus idaeus occurred only in the burned site.
Two rather specialised wild flowers that most of us are unlikely to see are trientalis
europaea, the chickweed wintergreen, thriving in wet acid moorland and coniferous forests and the brookweed, samolus valerandii, found on bare ground near the sea but which may also be seen being used as a submersed aquatic in well-lit cool water aquariums.
occidentalis), cloudberry (Rubus chamaemorus), bunchberry (Cornus unalaschensis), sundew (Drosera rotundifolia), Arctic (northern or American) starflower (Trientalis
borealis), blueberry (Vaccinium ovalifolium, V.
Burned site Coverage % Plant species 1997 September <1% -- 1998 May <1% -- July 10% Epilobium angustifolium, Ceratodon moss September 20% 1999 May 30% +Luzula + Calluna vulgaris July 50% September 55% 2000 May 60% + Deschampsia August 80% + Rubus idaeus Control site 100% Pleurozium and Dicranum moss, Linnaea borealis, Trientalis
europea, Vaccinium vitis-idaea, V.
Thus a spruce forest may contain relatively large patches of May lily (Maianthemum bifolium), starflowers (Trientalis
europaea and T.
claytoniana, Prenonthes sp., Rhododendron nudiflorum, Rubus hispidus, Smilacina racemosa, Smilax herbacea, Thelypteris nova-boracensis, Trientalis
borealis, Uvularia sessilifolia, Vaccinium angustifolium, V.
On these dunes, it is not uncommon to find a few understory species such as pipsissewa (Chimaphila umbellata), wild lily-of-the-valley (Maianthemum canadensis), and star-flower (Trientalis
borealis) established under a single pioneer white pine.
The interaction between the clonal herb Trientalis
europea and the host specific fungus Urocystis trientalis
Americana (star-flower), Pine Stream, 1853.
Understory species vary greatly but widespread and common species include wild sarsaparilla (Aralia nudicaulis L.), false lily of the valley (Maianthemum racemosum (L.) Link), bunchberry (Comus canadensis L.), and starflower (Trientalis