E-Flora BC: Electronic Atlas of the Flora of British Columbia

Hedeoma hispida Pursh
mock-pennyroyal (ground-ivy; rough false pennyroyal; rough pennyroyal)
Lamiaceae (Mint family)

Introduction to Vascular Plants
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Distribution of Hedeoma hispida
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Species Information

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Annual herb from a taproot, strong-scented; stems mostly branching, 5-25 cm tall, 4-angled, bristly-hairy.
Opposite, linear or narrowly oblong, to 2 cm long, entire, minutely-hairy, margins often stiff-hairy; unstalked or nearly so.
Inflorescence of leafy axillary flower clusters, the upper crowded to form a spike; corollas tubular, blue, 2-lipped, to 10 mm long; calyces tubular, bulging on lower side near base, 5 mm long, 13-ribbed, hairy in throat, upper 3 teeth about the length of lower 2, the teeth awl-tipped; fertile stamens 2.
Nutlets, 4 clustered together, egg-shaped, net-veined, glaucous, sticky when moistened.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry fields and grasslands in the steppe and montane zones; rare in SC and SE BC; E to PQ and S to MT, CO, TX, and MS.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Hedeoma hispida

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 605 1101 1820
Slope Gradient (%) 4 77 170
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
140 169 212
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 4
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: BAFA(1), ICH(2)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

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General References