|
|
|
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
| Related Links (opens in a new window) |
|
Treatments in Other Floras @ www.efloras.org
Other Databases
|
|
|
|
|
|
|
|
|
