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Desmodium illinoense Gray
Illinois ticktrefoil, Illinois tick-trefoil
USDA Symbol: DEIL2
USDA Native Status: Native to U.S.
Usually 3 ft., but can become taller in favorable conditions. Spindly stems may be erect or trailing. Leaves are pinnately three-parted. A tall, spindly, hairy stem topped with a slender, elongated cluster of many white, purple, or lavender-pink pea flowers. Small, pea-like, pink to purple flowers. Flattened seedpods are covered with tiny, hooked hairs that cling to fur and clothing.
A showy plant when in flower, this species develops long fruits with segments that separate and attach themselves to clothing, thereby promoting seed dispersal.
Plant CharacteristicsDuration: Perennial Habit: Herb Flower:
Fruit: Size Class:
Bloom InformationBloom Color: Purple
Bloom Time: Jun , Jul , Aug , Sep
AR , IA , IL , IN , KS , MI , MN , MO , NE , OH , OK , SD , TX , WI Canada: ON Native Distribution:
OH, s. MI, s.e. MN & s.e. SD, s. to e. TX Native Habitat:
Mesic to moist fields; prairie ravines; hillsides; open woods; roadsides USDA Native Status: L48(N), CAN(N)
Growing ConditionsLight Requirement: Sun , Part Shade
Soil Moisture: Moist
Soil Description: Rich, moist soils
Sow untreated or cold-moist stratified seed. All legume
seed should be inoculated. Seed Collection:
Not Available Seed Treatment:
Mix seeds with equal amounts of moist sand and refrigerate in sealed bag 10 days. Commercially Avail:
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Record Modified: 2012-12-07
Research By: TWC Staff