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FOC | Family List | FOC Vol. 17 | Lamiaceae

77. Keiskea Miquel, Ann. Mus. Bot. Lugduno-Batavi. 2: 105. 1865.

香简草属 xiang jian cao shu

Herbs or subshrubs. Leaves petiolate, dentate. Verticillasters 2-flowered, in terminal and axillary racemes; bracts persistent, somewhat lax or imbricate. Calyx campanulate, sparsely hairy, throat tufted hairy at each tooth sinus or pilose annulate; teeth 5, subequal or posterior tooth smaller. Corolla white, yellowish, or purple; tube funnelform to subcylindric, annulate; upper lip 2-lobed; middle lobe of lower lip flat; longer than circular lateral lobes. Stamens 4, exserted or rarely included, anterior 2 longer; filaments separate, glabrous, edentate; anther cells 2, divergent, apex confluent. Style filiform, apex 2-cleft; lobes subulate or ± linear, equal or unequal. Nutlets subglobose, glabrous.

About six species: China, Japan; five species in China.

1 Bracts broadly ovate-orbicular, ± imbricate   1 Keiskea elsholtzioides
+ Bracts indistinct, loosely arranged.   (2)
2 (1) Leaves lanceolate to oblong-lanceolate, base attenuate to obtuse, usually asymmetrical   5 Keiskea szechuanensis
+ Leaves ovate to oblong.   (3)
3 (2) Corolla dark purple, ca. 11 mm; middle lobe of lower lip widest, densely white barbate inside, red glandular   3 Keiskea australis
+ Corolla white or purplish, 5-8 mm; middle lobe of lower lip smaller, sparsely bearded inside, glandular.   (4)
4 (3) Leaves ovate, 10-15 × 4-6.5 cm; stem finely retrorse pilose   2 Keiskea sinensis
+ Leaves ovate-oblong to oblong, 3.5-9 × 2.5-4 cm; stem white floccose-villous   4 Keiskea glandulosa

Lower Taxa


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