Minnesota Wildflowers


or try: advanced plant search
Make a Donation!
Share |

Rudbeckia triloba (Brown-eyed Susan)

Plant Info
Also known as: Three-lobed Coneflower
Genus:Rudbeckia
Family:Asteraceae (Aster)
Life cycle:annual, short-lived perennial
Origin:native
Status:
  • State Special Concern
Habitat:part shade, sun; moist soil; low woods, thickets, disturbed soil
Bloom season:July - October
Plant height:1 to 5 feet
County distribution (click map to enlarge):Minnesota county distribution map

Pick an image for a larger view. Most image enlargements are 50-100KB, though some may be larger. See the glossary for icon descriptions.

Detailed Information

Flower: Flower shape: 7+petals Cluster type: panicle

[photo of flowers] Flowers are deep golden yellow, daisy-like, 1 to 2 inches across, held in widely branched open clusters. Flowers have 6 to 13 rays (petals) that are oval to round, with several small notches at the tips. The center disk is dark purple brown, round to almost conical.

[photo of bracts] Behind the flower are hairy bracts, typically 8 in number, of unequal size, spreading back away from the flower.

Leaves and stems: Leaf attachment: alternate Leaf type: lobed simple

[photo of leaves] Leaves are 2 to 4 inches long, ½ to 2 inches wide, dark green, thin and rough on both surfaces, covered in bristly hairs to varying degrees. Lower leaves are largest, stalked and often three-lobed; upper leaves and bracts are smaller, lance elliptic, sharply pointed with fine teeth or smooth edges. Stems are bristly hairy and usually reddish-green. Mature plants take on a bushy appearance from many branching stems.

Notes:

While a Minnesota species of special concern in the wild from loss of habitat to agriculture and invasive species, Brown-eyed Susan flourishes in gardens across the state. One of the best cut flowers around it can last for weeks in a kitchen vase. While the flowers may be similar to Black-eyed Susan (Rudbeckia hirta), though smaller, the leaves and overall plant structure make them easy to distinguish.

Where to buy native seed and plants

Help support this site by buying seeds & plants from these vendors. Tell them we sent you!

  • Out Back Nursery and Landscaping - Where Ecology and Horticulture Unite
  • Shooting Star Native Seeds - Native Prairie Grass and Wildflower Seeds
  • Landscape Alternatives - Distinctive Native Plants since 1986!
  • Prairie Restorations - Bringing people together with the land
  • Shop for native seeds and plants at PrairieMoon.com!

Map of native plant purveyors in the upper midwest

More photos

Photos by K. Chayka taken at Coon Rapids Dam Regional Park, Anoka County. Photos courtesy Peter M. Dziuk taken in a private garden in Anoka County..

Comments

Have you seen this plant in Minnesota, or have any other comments about it?

Posted by: Pat in Meeker Co.
on: 2012-04-07 20:14:16

Found a small plant growing near my shoreline on Lake Stella, in not very good soil. I collected seeds and germinated them the next year and planted out in my wildflower garden. Then forgot about them. The following year I had the most spectacular 'black eyed susan' ever. About four feet tall, this plant had hundreds of blooms for about two months. Absolutely Drop Dead Gorgeous.

Post a comment

Note: All comments are moderated before posting to keep the riff-raff out. An email address is required, but will not be posted—it will only be used for information exchange between the 2 of us (if needed) and will never be given to a 3rd party without your express permission.

For info on subjects other than plant identification (gardening, invasive species control, edible plants, etc.), please check the links and invasive species pages for additional resources.



(required)




Note: Comments or information about plants outside of Minnesota and neighboring states may not be posted because I’d like to keep the focus of this web site centered on Minnesota. Thanks for your understanding.