Interesting info

Oxalis or wood sorrel has a three-part leaf that resembles clover.

Very adaptable plant, found in wet and dry habitats, in shade and in sun.

The distinctions between species (O. stricta and O. dillenii) are minute, so I may be seeing more than one species at the preserve.

You ought to know

Height: less than 1'; sprawling plant hugs the ground and sometimes climbs

Frequency: Abundant in woods and field.

Blooms: Found in bloom from April through August.

Range: Found in all of Indiana, though it's more abundant in the south.

Found across Canada, from Prince Edward Island to British Columbia, and south to Florida and Mexico.