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Marcus, Joseph A.
Oxalis drummondii A. Gray
Drummond's woodsorrel, Wood-sorrel
Synonym(s): Oxalis amplifolia
USDA Symbol: oxdr
USDA Native Status: L48 (N)
This plants leaves grow from the base of the plant, with 3 leaflets about 1 inch long, notched slightly at the center of the outer edge. The leaves are cloverlike, about 2 inches across, green above and below. They fold downward, umbrella-like, at dusk or in cloudy weather. Flowers grow in clusters on leafless stems that grow from the base of the plant. Only 1 or 2 bloom at a time. They have a shallow funnel shape, ending in 5 lavender-pink to purple petals.
The species name of this plant is named for Thomas Drummond, (ca. 1790-1835), naturalist, born in Scotland, around 1790. In 1830 he made a trip to America to collect specimens from the western and southern United States. In March, 1833, he arrived at Velasco, Texas to begin his collecting work in that area. He spent twenty-one months working the area between Galveston Island and the Edwards Plateau, especially along the Brazos, Colorado, and Guadalupe rivers. His collections were the first made in Texas that were extensively distributed among the museums and scientific institutions of the world. He collected 750 species of plants and 150 specimens of birds. Drummond had hoped to make a complete botanical survey of Texas, but he died in Havana, Cuba, in 1835, while making a collecting tour of that island.
Plant CharacteristicsDuration: Perennial Habit: Herb Leaf Arrangement: Alternate Size Notes:
2-5 Fruit: Size Class:
Bloom InformationBloom Color: Pink
Bloom Time: Sep , Oct , Nov
, TX Native Habitat:
Found in open grassy areas, open woodlands, and brush-lands of either calcareous or sandy soils.
Growing ConditionsLight Requirement: Sun , Part Shade
Soil Moisture: Dry , Moist
Conditions Comments: Forms small colonies and does not seem invasive like its yellow-flowered cousin Oxalis dillenii. Makes a fine addition to a short grass wildflower mix or edge of woods.
BenefitUse Food: Add a few leaves, flowers, or green seedpods to a salad or soup as you would French Sorrel. The flavor is strong and sour, so add sparingly. Rich in vitamin C, it also contains high amounts of oxalic acid, similar to spinach, which when eaten in large amounts, may tie up calcium.
Conspicuous Flowers: yes
Interesting Foliage: yes
Nectar Source: yes
Deer Resistant: High
Mr. Smarty Plants says
Ground cover for trails in Northeast Texas
January 09, 2008
I have several acres of wooded land in Northeast Texas, Southern Lamar County. Both sandy and black land. I have created trails through the woods and would like to plant a native ground cover or gras...
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Herbarium Specimen(s)NPSOT 0557
Collected Oct 3, 1993 in Comal County by Mary Beth WhiteNPSOT 0037
Collected Oct. 2, 1990 in Bexar County by Judith C. Berry
Wildflower Center Seed BankLBJWC-1311
Collected 2013-10-21 in Burnet County by Lady Bird Johnson Wildflower Center
Record Last Modified: 2011-04-02
Research By: NPC