IRIS 91 Winter 2023
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Sticky shootingstar
(Primula conjugens var. viscida)
Saline shootingstar
(Primula pauciflora var. pauciflora)
IRIS 90 Summer 2022
Western false-Solomon-seal
(Maianthemum amplexicaule)
Starflower false-Solomon-seal
(Maianthemum stellatum)
IRIS 90 Summer 2022
Three-leaved-false-Solomon-seal
(Maianthemum trifolium)
Wild lily-of-the-valley
(Maianthemum canadense)
IRIS 86 Fall 2020
Alpine locoweed
(Oxytropis campestris var.cusickii)
Early yellow locoweed
(Oxytropis sericea)
Late yellow locoweed
(Oxytropis campestris var. spicata)
IRIS 85 Spring/Summer 2020
Prickly rose
(Rosa acicularis)
Prairie rose
(Rosa arkansana)
Woods rose
(Rosa woodsii)
IRIS 80 March 2017
Toothed bittercress
(Cardamine dentata)
Northern field bittercress
(Cardamine polemonioides) (syn C. nymanii)
IRIS 78 January 2016 and IRIS 76 March 2015
Sandhills cinquefoil
(Potentilla lasiodonta previously P. finitima)
Pennsylvania cinquefoil(Potentilla pensylvanica)
IRIS 70 January 2013
Short-stalk chickweed
(Cerastium brachypodum)
Nodding chickweed
(Cerastium nutans)
IRIS 70 March 2013
Plasmodial Slime Molds in Alberta
Scrambled-egg slime (Fuligo septica) growing on forbs Photo D. & M. McIvor
IRIS 69 January 2013
Key & Species Descriptions for Hawkweeds (Hieracium) in AlbertaNote: Hawkweeds have now been split into two genera: (Hieracium and Pilosella) There are numerous species, here are some examples.
Orange hawkweed
(Pilosella aurantiaca)
White hawkweed
(Hieracium albiflorum)
Slender hawkweed
(Hieracium triste)
IRIS 68 November 2012
Mountain cranberry (Vaccinium vitis-idaea)
Twinflower
(Linnea boreali)
Common bearberry
(Arctostaphylos uva-ursi)
IRIS 66 December 2011
Yellow columbine
(Aquilegia flavescens)
Western columbine
(Aquilegia formosa)
IRIS 66 December 2011
Blue columbine
(Aquilegia brevistyla)
Jones columbine
(Aquilegia jonesii)
IRIS 66 December 2011
Whitebark pine
(Pinus albicaulis)
Limber pine
(Pinus flexilis)
IRIS 60 May 2009
Cutleaf fleabane
(Erigeron compositus)
Threelobe fleabane
(Erigeron trifidus)
IRIS 59 February 2009
Golden saxifrage
(Chrysosplenium iowense)
Green saxifrage
(Chrysosplenium tetrandrum)
IRIS 58 November 2008
Leafy northern green orchid
(Platanthera aquilonis)
Tall northern green orchid
(Platanthera huronensis)
IRIS 57 March 2008
Fringed loosestrife
(Lysimachia ciliata)
Lowland yellow loosestrife
(Lysimachia hybrida)
IRIS 56 January 2008
Wild strawberry
(Fragaria virginiana)
Woodland strawberry
(Fragaria vesca)
IRIS 52 Summer 2006
Woodland horsetail
(Equisetum sylvaticum)
Field horsetail
(Equisetum arvense)
Meadow horsetail
(Equisetum pratense)
IRIS 50 Fall 2005
Paper birch
(Betula papyrifera)
Alaska paper birch
(Betula neoalaskana)
IRIS 49 Summer 2005
Thinleaf snowberry
(Symphoricarpos albus)
Western snowberry
(Symphoricarpos occidentalis)