yellow sweetclover

Plants: Forbs/Herbs
Magnoliopsida > Fabales > Fabaceae (Leguminosae) > Melilotus officinalis (L.) Lam.
Synonym(s): yellow sweet-clover
Yellow sweetclover is an annual to short-lived perennial herb native to Eurasia. Plants can grow to approximately 6 ½ ft. (2 m) in height and can sometimes be woody at the base. Leaves are ovate to oblong, entire, stipulate and 0.4-1 in. (1-2.5 cm) long. Flowering occurs from April to September, when yellow, pea-like flowers develop in a branched inflorescence at the tips of the flowering stems. Flowers are less than ¼ in. (7 mm) long. Fruits are small, circular, wrinkled and light brown pods that contain one seed (rarely 2). Plants occur along roadsides, in open fields, pastures and other disturbed areas. Yellow sweet clover was introduced into North America as a forage crop in the 1900s.

71 records

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Image Descriptor Description Photographer
1196226 Control Mechanical removal Elizabeth Bella
5308010 Diagram or Graphic USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. USDA PLANTS Database
5308013 Diagram or Graphic Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 2: 353. USDA PLANTS Database
5308014 Diagram or Graphic USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. USDA PLANTS Database
5308008 Diagram or Graphic Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 2: 352. USDA PLANTS Database
5362359 Flower(s)

Yellow sweetclover (Melilotus officinalis) in bloom.

Howard F. Schwartz
5392360 Flower(s) John M. Randall
5239077 Flower(s) Richard Old
5392345 Flower(s) John M. Randall
5401284 Flower(s) Mary Ellen (Mel) Harte
5404711 Flower(s) Karan A. Rawlins
5404712 Flower(s) Karan A. Rawlins
5404724 Flower(s) Karan A. Rawlins
5404728 Flower(s) Karan A. Rawlins
5405717 Flower(s) Bonnie Million
5405718 Flower(s) Bonnie Million
5404726 Flower(s) Karan A. Rawlins
5407407 Flower(s) Karan A. Rawlins
1459691 Flower(s) Steve Dewey
2152092 Flower(s) Chris Evans
5204050 Flower(s) Pedro Tenorio-Lezama
1196265 Flower(s) Jamie Nielsen
1196266 Flower(s) Jamie Nielsen
1196267 Flower(s) University of Alaska - Anchorage Archive
1196268 Flower(s) University of Alaska - Anchorage Archive
1196269 Flower(s) University of Alaska - Anchorage Archive
1196096 Flower(s) Tom Heutte
1196182 Flower(s) Nanna Borcherdt
1196183 Flower(s) Elizabeth Bella
1459687 Foliage Sweetclover - left; alfalfa - right Steve Dewey
5204051 Foliage Pedro Tenorio-Lezama
2152091 Foliage Chris Evans
5404727 Foliage Karan A. Rawlins
5404725 Foliage Karan A. Rawlins
5239078 Foliage Richard Old
1559353 Foliage Ohio State Weed Lab Archive
5392346 Fruit(s) John M. Randall
5204047 Fruit(s) Pedro Tenorio-Lezama
1364315 Fruit(s) Mary Ellen (Mel) Harte
1459688 Fruit(s) net-veined pods Steve Dewey
1459689 Infestation Steve Dewey
1459690 Infestation Steve Dewey
1196184 Infestation Michael Shephard
1559352 Infestation

in flower

Ohio State Weed Lab Archive
1459694 Infestation Steve Dewey
1459692 Infestation Steve Dewey
5392347 Infestation John M. Randall
5392361 Infestation John M. Randall
5392362 Infestation

Dense patches on plains

John M. Randall
5392363 Infestation

On the road again...

John M. Randall
5392364 Infestation

Lakeside

John M. Randall
5392344 Plant(s) John M. Randall
2152090 Plant(s) Chris Evans
5358580 Plant(s)

White sweetclover, Melilotus alba, in bloom.

L.L. Berry
5358581 Plant(s)

Yellow sweetclover, Melilotus officinalis, in bloom.

L.L. Berry
5407406 Plant(s) Karan A. Rawlins
1459693 Plant(s)

in flower

Steve Dewey
1196264 Plant(s) University of Alaska - Anchorage Archive
1559349 Plant(s)

in flower

Ohio State Weed Lab Archive
1559350 Plant(s)

in flower

Ohio State Weed Lab Archive
5204048 Plant(s) Pedro Tenorio-Lezama
5239072 Plant(s) Richard Old
5239073 Plant(s) Richard Old
1196285 Plant(s) Michael Shephard
1209020 Plant(s) side view of whole plant in typical habitat Dave Powell
1331022 Plant(s)

 in flower

Wendy VanDyk Evans
1364313 Plant(s) Mary Ellen (Mel) Harte
5308009 Seed(s) Steve Hurst
5401283 Stem(s) Mary Ellen (Mel) Harte
5401286 Stem(s) Mary Ellen (Mel) Harte
5204049 Stem(s) Pedro Tenorio-Lezama


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