Field Guide to Forest Plants of Northern Idaho

United States Department of Agriculture Forest Service Rocky Mountain Research Station Ft. Collins, CO General Technical Report RMRS-GTR-118-CD February 2004 Authors Acknowledgments Introduction Species description format Trees Shrubs Ferns & Friends Forbs Graminoids Descriptive drawings Collecting and    pressing methods Glossary References

Shrub characteristics Species Size Leaf Flower Fruit Comment Persistence Arrangement Type Inflorescence Color    Whorled --- evergreen Chimaphila spp. Sub Evergreen Whorled (alternate) Simple toothed Cluster Pink Capsule      Opposite --- evergreen Linnaea borealis Sub Evergreen Opposite Simple toothed Two Pink Capsule mat forming Pachistima myrsinites Low Evergreen Opposite Simple toothed Cluster Maroon Berry   Satureja douglasii Sub Evergreen Opposite Simple toothed Single White Nutlet odor; square stems    Opposite --- deciduous Acer glabrum Tall Deciduous Opposite Simple palmate Cluster Green yellow Samara Idaho native maple Cornus stolonifera Tall Deciduous Opposite Simple entire Cluster White Drupe red stems Lonicera spp. Med Deciduous Opposite Simple entire Single / two Yellow / orange Berry white pith Philadelphus lewisii Tall Deciduous Opposite Simple toothed Raceme White Capsule Idaho state flower Sambucus spp. Tall Deciduous Opposite Pinnate toothed Cluster / flat White Berry large berrylike clusters Shepherdia canadensis Med Deciduous Opposite Simple entire Single / cluster Yellow Berry reddish scales Symphoricarpos spp. Med Deciduous Opposite Simple entire Raceme White - pink Berry dark pith    Alternate --- evergreen Arctostaphylos uva-ursi Sub Evergreen Alternate Simple entire Cluster White - pink Berry mat forming Berberis spp. Sub - med Evergreen Alternate Pinnate toothed Raceme Yellow Berry   Ceanothus velutinus Tall Evergreen Alternate Simple toothed Pinnate White Capsule spicy smelling Gaultheria spp. Sub Evergreen Alternate Simple toothed Single White - pink Berry mat forming Ledum glandulosum Med Evergreen Alternate Simple entire Cluster White - yellow Capsule yellow glands on leaf bottom Phyllodoce empetriformis Sub - low Evergreen Alternate Simple linear inrolled Single Pink Capsule high elevation Taxus brevifolia Tall Evergreen Alternate Simple linear entire -- -- Berry sharp-tipped leaf    Alternate --- deciduous Alnus spp. Tall Deciduous Alternate Simple toothed Ament Greenish white Nutlet persistent semiwoody ament Amelanchier alnifolia Tall Deciduous Alternate Simple toothed Raceme White Pome early blooming Betula glandulosa Med - tall Deciduous Alternate Simple toothed Ament Greenish white Samara glandular stems Ceanothus sanguineus Tall Deciduous Alternate Simple toothed Panicle White Capsule red stems Crataegus douglasii Tall Deciduous Alternate Simple toothed Cluster White Pome armed Holodiscus discolor Tall Deciduous Alternate Simple toothed Panicle Cream Achene dried flower sprays Menziesia ferruginea Med Deciduous Alternate Simple toothed Cluster Pink - white yellow Capsule white tipped leaves Oplopanax horridum Med Deciduous Alternate Simple palmate Raceme Greenish white Berry densely armed Physocarpus malvaceus Med Deciduous Alternate Simple palmate Cluster White Follicle shreddy bark Prunus spp. Tall Deciduous Alternate Simple toothed Raceme cluster White Drupe 1-3 prominent leaf glands Rhamnus purshiana Tall Deciduous Alternate Simple toothed Cluster Greenish white Berry naked buds Rhododendron albiflorum Med Deciduous Alternate (whorled) Simple toothed Cluster White Capsule high elevation Ribes spp. Med Deciduous Alternate Simple toothed lobed - palmate Raceme Green / yellow / pink Berry glandular fruit Rosa spp. Med Deciduous Alternate Compound toothed Single / cluster Pink Hip armed Rubus spp. Sub - med Deciduous (evergreen) Alternate Compound toothed / simple palmate toothed Single / cluster White / pink Drupe   Salix scouleriana Tall Deciduous Alternate Simple entire Ament Greenish white Capsule common upland willow Sorbus spp. Tall Deciduous Alternate Compound pinnate toothed Cluster / flat White Pome   Spiraea betulifolia Low Deciduous Alternate Simple toothed Flat White Follicle   Vaccinium spp. Low - med Deciduous Alternate Simple toothed Single / cluster Pink / white / yellow Berry   - = "to"          / = "or"          () = "can also be" Size:         Subshrub: 0-20cm (0-8in)         Low shrub: 20-50cm (8-20in)         Medium shrub: 5-20dm (1.7-7ft)         Tall shrub: 2m+ (7ft+)