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FOC | Family List | FOC Vol. 17 | Lamiaceae

19. Glechoma Linnaeus, Sp. Pl. 2: 578. 1753.

活血丹属 huo xue dan shu

Herbs stoloniferous, perennial, gynodioecious or gynomonoecious. Stems ascending to prostrate. Leaves long petiolate, base cordate. Verticillasters axillary, 2-6-(to many) flowered. Calyx tubular to campanulate, slightly curved near throat, 15-veined, indistinctly 2-lipped, adaxial lip 3-toothed, abaxial lip 2-toothed. Corolla tubular, dilated at apex, 2-lipped; adaxial lip straight, emarginate or 2-lobed; abaxial lip spreading, 3-lobed. Stamens 4, anterior 2 inserted below lateral lobes of abaxial lip, posterior 2 inserted near throat below adaxial lip; filaments glabrous, undeveloped in pistillate flowers; anther cells oblong, parallel or divergent. Ovary glabrous. Style slender, apex subequally 2-cleft. Nutlets dark brown, oblong-ovoid, smooth or impressed-punctate, glabrous.

About eight species: Asia, Europe, cultivated in North and South America; five species in China.

1 Corolla rarely to 2 × as long as calyx.   (2)
+ Corolla usually more than 2 × as long as calyx.   (3)
2 (1) Calyx 5-7 mm, teeth ovate, ca. 1 mm; leaves glabrous   1 Glechoma hederacea
+ Calyx 9-11 mm, teeth ovate-triangular, 3-5 mm; leaves hairy   2 Glechoma longituba
3 (1) Leaves cordate-ovate, coarsely crenate to serrate-crenate; basal petioles 2-3 × as long as blade; corolla tube campanulate to tubular-campanulate.   (4)
+ Leaves reniform to cordate-reniform, crenate; basal petioles more than 3 × as long as blade; corolla tube funnelform.   (5)
4 (3) Plants (except flowers) sparsely retrorse pubescent; calyx teeth ovate-triangular, apex awned   2 Glechoma longituba
+ Plants villous, puberulent; calyx teeth triangular, apex spinescent-aristate   3 Glechoma biondiana
5 (3) Calyx ca. 7-10 mm, teeth ovate; leaf blade ca. 2 × 3 cm   4 Glechoma grandis
+ Calyx 10-12 mm, teeth triangular-lanceolate, spinescent-aristate; leaf blade ca. 3 × 4-4.5 cm   5 Glechoma sinograndis

Lower Taxa


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