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Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Hedeoma acinoides (Slender false pennyroyal)
Strickland, Sam C.

Hedeoma acinoides

Hedeoma acinoides Scheele

Slender False Pennyroyal, Annual Pennyroyal, Slender Hedeoma

Lamiaceae (Mint Family)



USDA Native Status: L48 (N)

Delicate ephemeral annual usually about 6-10" high.

Fragrant foliage.


From the Image Gallery

15 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Root Type: Tap
Leaf Arrangement: Opposite
Leaf Complexity: Simple
Leaf Shape: Elliptic , Ovate
Leaf Pubescence: Glabrous
Leaf Margin: Serrate
Inflorescence: Axillary , Cyme
Size Notes: Up to about 10 inches tall.
Leaf: Basal leaves often purplish.
Fruit: Nutlets.

Bloom Information

Bloom Color: Pink , Purple
Bloom Time: Apr , May
Bloom Notes: Pink to pale lavender.



Growing Conditions

Water Use: Medium
Light Requirement: Sun , Part Shade
Soil Moisture: Dry , Moist
Soil Description: On limestone

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Fredericksburg Nature Center - Fredericksburg, TX
Lady Bird Johnson Wildflower Center - Austin, TX
Patsy Glenn Refuge, c/o Wimberley Birding Society - Wimberley, TX
Nueces River Authority - Uvalde, TX

Herbarium Specimen(s)

NPSOT 0361 Collected Apr 23, 1993 in Comal County by Mary Beth White

1 specimen(s) available in the Digital Herbarium

Wildflower Center Seed Bank

LBJWC-1933 Collected 2017-05-19 in Travis County by Brady Lee
LBJWC-18 Collected 2006-05-02 in Travis County by Lady Bird Johnson Wildflower Center

2 collection(s) available in the Wildflower Center Seed Bank


Bibref 293 - Manual of the Vascular Plants of Texas (1979) Correll, D. S. & M. C. Johnston
Bibref 281 - Shinners & Mahler's Illustrated Flora of North Central Texas (1999) Diggs, G. M.; B. L. Lipscomb; B. O'Kennon; W. F...
Bibref 286 - Wildflowers of the Texas Hill Country (1989) Enquist, M.

Search More Titles in Bibliography

Web Reference

Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Hedeoma acinoides in USDA Plants
FNA: Find Hedeoma acinoides in the Flora of North America (if available)
Google: Search Google for Hedeoma acinoides


Record Modified: 2023-02-13
Research By: TWC Staff

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