Colebrookea oppositifolia Sm.
EOL Text
Yunnan [India, Myanmar, Nepal, Thailand].
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Colebrookea is a genus of plants in the Lamiaceae, first described in 1806. It contains only one known species, Colebrookea oppositifolia, native to India, Pakistan, Nepal, Bhutan, Assam, Bangladesh, Myanmar, Thailand and Yunnan.[1][2][3][4][5]
References[edit]
- ^ a b Kew World Checklist of Selected Plant Families
- ^ Flora of China Vol. 17 Page 264 羽萼木 yu e mu Colebrookea oppositifolia Smith, Exot. Bot. 2: 111. 1806.
- ^ Rahman, M.O. (2004). Second list of angiospermic taxa of Bangladesh not included in Hooker's 'Flora of British India' and Prain's 'Bengal Plants': series I. Bangladesh Journal of Plant Taxonomy 11: 77-82.
- ^ Tanaka, N., Koyama, T. & Murata, J. (2005). The flowering plants of Mt. Popa, central Myanmar - Results of Myanmar-Japanese joint expeditions, 2000-2004. Makinoa 5: 1-102.
- ^ Khanam, M. & Hassan, M.A. (2008). Lamiaceae. Flora of Bangladesh 58: 1-161. Bangladesh National Herbarium, Dhaka.
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Sichuan, Yunnan
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Used medicinally.
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Punjab, Himalaya (Kashmir to Bhutan), India, Burma, S. W. China (Yunnan), Indo-China.
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250-1700 m
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Plants 1-3 m, much branched. Petiole 0.8-2.5 cm; leaf blade 10-20 × 3-7 cm, base broadly cuneate to rounded, margin crenulate-serrulate, apex long acuminate, adaxially rugulose and puberulent, abaxially densely-tomentose to lanate-tomentose. Panicles 10-15 cm, branches 4-7 cm; verticillasters 10-18-flowered, globose; bracteoles ca. 1 mm, densely tomentose outside, glabrous inside. Flowers ca. 2 mm. Pistillate flowers: calyx campanulate, ca. 1.5 mm, to 6 mm in fruit, tube very short, becoming conspicuously ribbed; teeth subulate, later spinescent, ± purple. Corolla tube puberulent, lower lip slightly longer than upper lip, with middle lobe ovate. Stamens inserted on apical part of tube, included. Style 2 × as long as corolla. Bisexual flowers: calyx minute, ca. 0.6 mm. Corolla to 3 mm; upper lip ovate-oblong, ca. 0.5 mm, straight, emarginate; lower lip elongated, spreading, ca. 1.5 mm, middle lobe ovate-oblong, 2 × as long as ovate lateral lobes. Style erect, slightly longer than corolla. Nutlets obovoid, ca. 1 mm, yellow-brown, with a small basal white scar. Fl. Jan-Mar, fr. Mar-Apr.
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Herbs erect, 10-50 cm tall. Stems pyramidally branched from base; branches at 45°, white floccose. Petiole 2-8 mm, white floccose; leaf blade lanceolate, 0.3-2(-4) cm × 2-4(-13) mm, adaxially sometimes tinged purplish red, puberulent, abaxially villous, yellowish glandular, base attenuate, margin serrate, apex acuminate. Spikes 1.2-4 cm; verticillasters many flowered; bracts subcircular, ca. 4.5 × 4 mm, white villous abaxially, glabrous adaxially, purplish veined, margin ciliate, apex mucronate. Calyx tubular, ca. 2.5 mm, white villous, glandular outside; anterior teeth longer, apex spinescent, margin ciliate. Corolla purple, ca. 6 mm, white villous, glandular outside; upper lip emarginate, margin densely villous; lower lip slightly spreading, middle lobe circular, margin entire, apex mucronate; lateral lobes arcuate, margin sparsely ciliate. Anthers dark purple. Nutlets dark brown, oblong, ca. 1.2 mm. Fl. and fr. Sep-Nov.
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"Large shrubs; stem and leaves densely tomentose. Leaves to 20 x 6 cm, elliptic, acuminate, crenulate, base acute to acuminate, nerves ca.10 pairs, oblique. Spikes to 10 x 0.5 cm, panicled, terminal, densely hairy. Flowers in close whorls; calyx 1.5 mm long; tube very short, densely white-hairy, lobes subulate; corolla 2 mm long, equally 4-lobed; stamens 4, exserted in male flowers, included in female flowers, filaments glabrous; style 2-fid at tip. Nutlets hairy at apex; fruiting calyx larger."
Habit: Shrub