Plantae > Tracheophyta > Magnoliopsida > Malpighiales > Violaceae > Viola > Viola pubescens

Viola pubescens (downy yellow violet)

Synonyms: Crocion eriocarpum; Crocion pubescens; Viola pensylvanica; Viola pubescens var. peckii

Wikipedia Abstract

Viola pubescens, often called downy yellow violet, is a plant species of the genus Viola. It is found in dry mixed and deciduous woodland areas of the United States and Canada; from Minnesota and Ontario to Nova Scotia, South to Virginia. It grows 6 to 10 inches tall and is a stemmed viola with stems that have leaves, it blooms from April through May.
View Wikipedia Record: Viola pubescens


Viola pubescens var. scabriuscula (Downy yellow violet)


Height [2]  16 inches (0.4 m)
Allergen Potential [1]  Low
Screening - Summer [2]  Porous
Screening - Winter [2]  Porous
Hardiness Zone Minimum [2]  USDA Zone: 3 Low Temperature: -40 F° (-40 C°) → -30 F° (-34.4 C°)
Light Preference [2]  Mostly Shady
Soil Acidity [2]  Neutral
Soil Fertility [2]  Very Rich
Water Use [2]  Moderate
Flower Color [2]  Yellow
Foliage Color [2]  Dark Green
Fruit Color [2]  Brown
Flower Conspicuous [2]  Yes
Bloom Period [2]  Early Spring
Drought Tolerance [2]  Medium
Fire Tolerance [2]  Low
Frost Free Days [2]  4 months
Fruit/Seed Abundance [2]  Low
Fruit/Seed Begin [2]  Spring
Fruit/Seed End [2]  Summer
Growth Form [2]  Rhizomatous
Growth Period [2]  Spring, Summer
Growth Rate [2]  Moderate
Leaf Type [2]  Deciduous
Lifespan [2]  Perennial
Propagation [2]  Bare Root, Cutting, Seed, Sprig
Regrowth Rate [2]  Slow
Root Depth [2]  3.9 inches (10 cm)
Seed Spread Rate [2]  Slow
Seed Vigor [2]  Low
Shape/Orientation [2]  Decumbent
Structure [3]  Herb
Vegetative Spread Rate [2]  Slow

Protected Areas

Name IUCN Category Area acres Location Species Website Climate Land Use
Blue Ridge Parkway National Parkway V 73611 North Carolina, Virginia, United States
Bruce Peninsula National Park II   Ontario, Canada
Calvin College Ecosystem Preserve 90 Michigan, United States
Cape Breton Highlands National Park II 234333 Nova Scotia, Canada  
Catoctin Mountain Park National Park II 5994 Maryland, United States
Chippewa Nature Center   Michigan, United States    
Edwin S. George Reserve 1297 Michigan, United States
Forillon National Park II 61010 Quebec, Canada  
Fundy National Park II 52716 New Brunswick, Canada
Georgian Bay Islands National Park II   Ontario, Canada
Gettysburg National Military Park V 3560 Pennsylvania, United States
Great Smoky Mountains National Park II 515454 North Carolina, Tennessee, United States
Hope College Biology Nature Preserve 55 Michigan, United States
Hopewell Furnace National Historic Site III 861 Pennsylvania, United States
Indiana Dunes National Lakeshore II 8272 Indiana, United States
Isle Royale Biosphere Reserve Ib 571799 Michigan, United States
La Mauricie National Park II 131706 Quebec, Canada
Manassas National Battlefield Park III 5132 Virginia, United States
Niagara Escarpment Biosphere Reserve 470167 Ontario, Canada  
Point Pelee National Park II 5764 Ontario, Canada
Riding Mountain Biosphere Reserve II 762028 Manitoba, Canada
Rondeau Provincial Park II 5035 Ontario, Canada
Roosevelt Vanderbilt National Historic Site   New York, United States      
Saint Lawrence Islands National Park II   Ontario, Canada
Shenandoah National Park II 108221 Virginia, United States
Southern Appalachian Biosphere Reserve 37548505 North Carolina, Tennessee, United States  
Valley Forge National Historical Park VI 3509 Pennsylvania, United States
Wind Cave National Park II 29471 South Dakota, United States


Pollinated by 
Andrena carlini (Mining bee)[4]
Anthemurgus passiflorae (passionflower bee)[5]
Anthophora ursina[4]
Bombus americanorum[4]
Bombus pensylvanicus (bumble bee)[5]
Bombylius major (Bee fly)[4]
Centrinites strigicollis[5]
Ceratina dupla (Little carpenter bee)[4]
Chloralictus pilosus <Unverified Name>[4]
Chloralictus sparsus <Unverified Name>[4]
Chloralictus versatus <Unverified Name>[4]
Curtisapis coriacea <Unverified Name>[4]
Eurymus philodice <Unverified Name>[4]
Gonia capitata[4]
Melanostoma obscurum <Unverified Name>[4]
Mesogramma marginata[4]
Nomada salicis[5]
Nomada sayi[4]
Osmia atriventris (Maine blueberry bee)[4]
Osmia pumila[4]
Oxystoglossa confusa <Unverified Name>[4]
Paragus tibialis[4]
Reichertella pulicaria[5]
Scymnus consobrinus[5]
Seladonia fasciata <Unverified Name>[4]
Spallanzania hesperidarum[5]
Tetralonia belfragei <Unverified Name>[4]
Thanaos juvenalis <Unverified Name>[4]
Thanaos martialis[4]
Triepeolus cressonii[5]


North America;



Attributes / relations provided by
1Derived from Allergy-Free Gardening OPALS™, Thomas Leo Ogren (2000)
2USDA Plants Database, U. S. Department of Agriculture
3Kattge, J. et al. (2011b) TRY - a global database of plant traits Global Change Biology 17:2905-2935
4Robertson, C. Flowers and insects lists of visitors of four hundred and fifty three flowers. 1929. The Science Press Printing Company Lancaster, PA.
5Jorrit H. Poelen, James D. Simons and Chris J. Mungall. (2014). Global Biotic Interactions: An open infrastructure to share and analyze species-interaction datasets. Ecological Informatics.
Protected Areas provided by Biological Inventories of the World's Protected Areas in cooperation between the Information Center for the Environment at the University of California, Davis and numerous collaborators.
Calvin College Ecosystem Preserve
Chippewa Nature Center
Edwin S. George Reserve, University of Michigan, Department of Ecology and Evolutionary Biology
Hope College Biology Nature Preserve
Images provided by Google Image Search
Abstract provided by DBpedia licensed under a Creative Commons License
Weather provided by NOAA METAR Data Access