Ground-ivy - Glechoma hederacea
Other Names:
Gill-Over-the-Ground, Creeping Charlie, Catsfoot, Alehoof
Perennial herbs with stolons or shallow rhizomes. Stems creeping to ascending, 5–30 cm, glabrous to scabrous. Leaves cauline; blades ovate to reniform, cordate, hirsute above, crenate, 1–3 cm long. Inflorescence of several pedicellate flowers at leaf nodes. Flowers perfect or sometimes female; calyx with 15 veins, 5–7 mm long, scabrous, teeth subulate, the upper longer; corolla ca. 1 cm long, blue with purple spots, bilabiate, middle lobe of lower lip the largest; stamens 4, upper pair longer; style 2-lobed (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).