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Strickland, Sam C.
Hedeoma drummondii Benth.
Drummond's false pennyroyal, Limoncillo, Mock Pennyroyal
Synonyms: Hedeoma campora,
Hedeoma ciliata, Hedeoma drummondii var. crenulata,
USDA Symbol: hedr
USDA Native Status: Native to U.S.
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: Annual Habit: Herb Size Notes:
Fruit: Size Class:
Bloom InformationBloom Color: White , Purple
Bloom Time: May , Jun , Jul , Aug , Sep
AL , AR , AZ , CA , CO , KS , MN , MT , ND , NE , NM , NV , OK , OR , SD , TX , UT , WY Native Habitat:
Across Texas on rocky, limestone embankments and flats. Well-drained loam, caliche, limestone. USDA Native Status: L48(N)
Growing ConditionsLight Requirement: Part Shade
Soil Moisture: Dry
Conditions Comments: The crushed citrus-smelling leaves of this plant explain the origin of the common names limoncillo and mock pennyroyal. The common name of Limoncillo is applied to several lemmon scented plants.
BenefitUse Food: Drummond false pennyroyal smells and tastes like peppermint and is served as such in Mexico. Other Hedeomas are used as medicines, teas, and meat flavorings in Mexico and South America, and are sold as oregano.
Fragrant Flowers: yes
Fragrant Foliage: yes
Deer Resistant: High
Herbarium Specimen(s)NPSOT 0531
Collected Jul 27, 1987 in Bexar County by Harry CliffeNPSOT 0395
Collected May 29, 1993 in Comal County by Mary Beth WhiteNPSOT 0119
Collected June 7, 1991 in Bexar County by Lottie Millsaps
Wildflower Center Seed BankLBJWC-DEM-2
Collected 2009-06-06 in Burnet County by Lady Bird Johnson Wildflower Center
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Record Modified: 2008-10-08
Research By: TWC Staff