Glechoma hederacea L

[From the Greek, glechon = a kind of mint and from Latin, hederacea = pertaining to ivy]

Synonymy: Nepeta glechoma Benth., Glechoma hederacea L. var. parviflora (Benth.) House, Nepeta hederacea (L.) Trevisan, Glechoma hederacea L. var. micrantha Moric.

Common names: Creeping charlie, ground ivy; lierre terrestre (French).

Fig. 306. Glechoma hederacea L. From: KLU Herbarium 35606. Plants of Maryland. Field collector & botanical identification: LM Mac Intosh, 21 Apr 1980, Montgomery Co.: Takoma Park, yard at 7303 and 7307 Piney Branch Road, in woods, United States of America.

Physical description: It is a herb native to Eurasia which has spread to North Temperate countries. The plant is invasive and found in abandoned fields, open disturbed areas and pastures. The stems are creeping, quadrangular, smooth and subglabrous. Leaves: simple, opposite and without stipules. The petiole is 4.5cm-8mm long and sheathing at the base. The blade is reniform, subglabrous, very thin and 2.5 cm x 1.3cm-1.2cm x 1.5 cm. Both sides of the blade are microscopically mottled with black spots. The margin is crenate and recurved. The inflorescences are in axillary, few-flowered clusters. The calyx is tubular, ribbed, hairy, 5-lobed, and 5 mm x 2 mm. The corolla is 7 mm-1 cm long, purplish in color, and the stigma is bifid (Fig. 306).

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