Cornus mas -- Cornelian Cherry

Non-native* (Southern Europe and southwestern Asia)

Other names: Cornelian Cherry-Dogwood

[1]

[1]

[1]

Additional photo at Vilmorin seeds commercial site here.


References:

• Species profile at USDA Plants Database
• Center for Invasive Species and Ecosystem Health, Invasive.org species profile

* Listed as invasive in natural areas by the Invasive Plant Atlas of the United States.

(Numbers in photo captions are photo credits, listed in the "Photo Credits" tab at the top of the page)

Rubus occidentalis -- Black Raspberry

Native

Other names: Blackcap raspberry, Thimbleberry

 Steve Hurst @ USDA-NRCS PLANTS Database [1]

Christopher Noll [3]

Merel R. Black [3]

[1]

Notes:
Seeds present in fecal samples at the Rouge River Bird Observatory, Dearborn, MI.

References:

• Species profile at USDA Plants Database
• Michigan Flora online species profile
• University of Wisconsin-Steven Point Robert. W. Freckmann herbarium species profile
• Ladybird Johnson Wildflower Center species profile
• Trees, Shrubs, and Woody Vines of Illinois species profile

(Numbers in photo captions are photo credits, listed in the "Photo Credits" tab at the top of the page)

Euonymus atropurpureus -- Eastern Wahoo

Native

Other names:  Euonymus atropurpurea, Burning Bush, Indian Arrow Wood

[8]

[4]

[7]

[7]

[1]

Notes:
E. atropurpureus is similar to E. americanus, which is found south of Michigan. Both species native to North America can be distinguished from the non-native E. alatus (Burning Bush, Winged Euonymus) by the presence of a winged stem on the latter.

See identification tips and distinguishing E. atropurpureus from other Euonymus in Mistaken Identity? Invasive Plants and their Native Look-alikes: an Identification Guide for the Mid-Atlantic (PDF) by the New York Botanical Garden. 
References:

• Species profile at USDA Plants Database
• Michigan Flora online species profile
• University of Wisconsin-Steven Point Robert. W. Freckmann herbarium species profile
• Ladybird Johnson Wildflower Center species profile
• Trees, Shrubs, and Woody Vines of Illinois species profile

(Numbers in photo captions are photo credits, listed in the "Photo Credits" tab at the top of the page)

Lindera benzoin -- Spicebush

Native

Other names:  Northern Spicebush, Wild Allspice

[8]

[4]

Photo by Tom Potterfield at Flickr under a Creative Commons license

Wild Plants Database, under a Creative Commons license

[1]

Notes: 
Fruit ripening dates: August through September

References:

• Species profile at USDA Plants Database
• Michigan Flora online species profile
• Ladybird Johnson Wildflower Center species profile
• Trees, Shrubs, and Woody Vines of Illinois species profile
• University of Connecticut Plant Database species profile

(Numbers in photo captions are photo credits, listed in the "Photo Credits" tab at the top of the page)

Solanum ptychanthum -- West Indian Nightshade

Native

Other names: Solanum ptycanthum, Black Nightshade, Eastern Black Nightshade

[8]

[1] Seeds of Solanum nigrum; see notes

[4]

[4]

[1]

Notes:
Fruit and plant could be confused with the non-native Black Nightshade, Solanum nigrum, which may be rare or unrecorded in Michigan. S. nigrum has duller fruit, and the flowers/fruit are racemiform (do not arise from a single point, as do S. ptychanthum, compare photo above to this photo of S. nigrum).

Seeds of S. nigrum are comma-shaped, while seeds of S. ptychanthum are rounder. They look similar to Lonicera seeds, but are very tiny.

References:

• Species profile at USDA Plants Database
• Michigan Flora online species profile
• University of Wisconsin-Steven Point Robert. W. Freckmann herbarium species profile
• Weedy Wildflowers of Illinois species profile
• Ladybird Johnson Wildflower Center species profile 

(Numbers in photo captions are photo credits, listed in the "Photo Credits" tab at the top of the page)

Crataegus spp. -- Hawthorn

Native and non-native

Crataegus chrysocarpa (Fireberry Hawthorn, native) [1]

Crataegus crus-galli (Cockspur Hawthorn, native) [1]

Crataegus douglasii (Black Hawthorn, native) [1]

Crataegus phaenopyrum (Washington Hawthorn, native) [1]

 Crataegus phaenopyrum (Washington Hawthorn) [4]

[1] Genus

Notes:
Small to large trees superficially similar to crabapples (Malus) except most with long thorns. Many species are in cultivation of both native and non-native species and their cultivars. They also hybridize readily. See the species accounts at Michigan Flora online for more information on distribution of the species recorded naturalized in the state.

Small-fruited types are most often used by birds, although even the smaller fruits are only suitable to thrush- or robin-sized species. C. phaenopyrum (Washington Hawthorn) is native hawthorns south of Michigan but naturalized here. It is one of the last hawthorns to bloom/fruit and has some of the smallest fruit, eagerly consumed by birds.

Seeds of many species are similar and often cannot be identified to species.

Seeds present in fecal samples in birds at the Rouge River Bird Observatory, Dearborn, MI.

References:

• Genus profile at USDA Plants Database
• Michigan Flora online genus key
• University of Wisconsin-Steven Point Robert. W. Freckmann herbarium C. phaenopyrum species profile
• Ladybird Johnson Wildflower Center C. phaenopyrum species profile
• Trees, Shrubs, and Woody Vines of Illinois C. phaenopyrum species profile
• Center for Invasive Species and Ecosystem Health, Invasive.org C. phaenopyrum species profile

* Listed as invasive in natural areas by the Invasive Plant Atlas of the United States.

(Numbers in photo captions are photo credits, listed in the "Photo Credits" tab at the top of the page)