Robert W. Freckmann Herbarium


Because of technology changes and personnel changes at UWSP and the Wisconsin State Herbarium, the database of plant species housed at this site was merged with the database from the OLD WisFlora website to create a new Flora of Wisconsin website at Currently we are encouraging all Wisplant viewers to begin using the Flora of Wisconsin website as soon as possible. Wisplants will remain operational through July 13th. After that date, all traffic to Wisplants will be redirected to the Flora of Wisconsin website.

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  Arabis missouriensis Greene image
Photographer: Hugh H. Iltis           

Robert W. Freckmann
Family Brassicaceae
Arabis missouriensis Greene
green rock-cress, Missouri rock-cress
Arabis: a Greek word used for "mustard" or "cress," and the Greek word for Arabia, perhaps referring to the ability of these plants to grow in rocky or sandy soils (?)
missouriensis: of Missouri
County distribution map- click for detailed distribution maps.
Detailed Distribution:
Town Range Maps
Google Dot Maps
Status: Special Concern
Plant: erect, biennial, 8"-20" tall forb; stems usually unbranched
Flower: white, 4-parted, 1/3"-1/2" wide, petals mostly 2 times longer than the sepals; inflorescence a tall, erect cluster (raceme) of stalked flowers; blooms May-July
Fruit:long, thin, drooping, flat, widely-spreading, curving pod; seeds in 1 row, winged
Leaf:many, erect stem leaves hairy on both sides, the lower ones lobed at the base; lower leaves heavily toothed to pinnately-divided
Habitat: moist to dry; woods, hills; in sandy, rocky soil

More Information Natural Communities Herbarium Specimens
All Arabis list Google- Images or Text

Flora of North America (off site)
Arabis laevigata (Muhl. ex Willd.) Poir. var. missouriensis (Greene) Ahles
Arabis missouriensis Greene var. deamii (M.Hopkins) M.Hopkins
Arabis viridis Harger
Arabis viridis Harger var. deamii M.Hopkins

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