Prunus Padus L. Leather, S. R. Journal of Ecology, 84(1):125–132, 1996.
abstract   bibtex   
A deciduous tree with characteristic, strong tannin smelling, dark grey-brown bark; 3-19 m high. Young trees of open habit, slender, branched, conical with upper branches ascending; older trees rounded, b ranches drooping. A dense shrubby bush form also exists. Shoots shiny, dark brown, sometimes covered at first with fine down, sometimes quite glabrous, bud (2-10mm long, 1.8-2.8mm in diameter) tightly appressed, sharply pointed, conic-ovoid, dark brown at base, pale at tip. Leaves ovate to obovate, 50-100m m long, 30-60 mm wide, acuminate, rounded or cordate at base, finely serrulate, dark green above, glabrous or with white hairs along lower-side midrib, firm and leathery with sunken veins. Petioles stout, 0.8-2.0 mm in diameter ,10-20mm long, grooved, red with two prominent dark red/brown extra-floral nectaries, one on each side of the distal end. Flowers fragrant, white, in loose glabrous racemes 100-200 mm long, with leaves near base, 50-90 mm (150 mm in exceptional cases). Calyx with five shallow rounded lobes, receptacle hairy within, sepals short (2-3 mm long), obtuse, ascending; petals 4 -6(-9) mm, white and toothed. Usually 20 stamens, one carpel and a terminal style. Ovary superior with two ovules. Fruit 6-8mm, 130-210mg (fresh weight),g lobular, black ,bitter to taste. Native, found especially alongside rivers, streams or on the edges of cultivated land, with many cultivars in gardens. Typically a component of woodland and scrub at moderate altitudes on calcareous or neutral soils which are fairly wet; often associated with Fraxinus excelsior and Alnus glutinosa. Placed in subgenus Padus (Mill.) Focke, Section Padus. Flora Europaea gives two subspecies: padus, the tree form up to 17m with heavily scented flowers, and borealis Cajander, the shrub form up to 3 m with prominent leaf veins and flowers scarcely scented, but absent from Britain. The main cultivar wateri is frequently seen, with flower spikes much longer, spectacular in flower, and with spreading pendulous shoots.
@article{leatherPrunusPadus1996,
  title = {Prunus {{Padus L}}.},
  author = {Leather, Simon R.},
  year = {1996},
  volume = {84},
  pages = {125--132},
  abstract = {A deciduous tree with characteristic, strong tannin smelling, dark grey-brown bark; 3-19 m high. Young trees of open habit, slender, branched, conical with upper branches ascending; older trees rounded, b ranches drooping. A dense shrubby bush form also exists. Shoots shiny, dark brown, sometimes covered at first with fine down, sometimes quite glabrous, bud (2-10mm long, 1.8-2.8mm in diameter) tightly appressed, sharply pointed, conic-ovoid, dark brown at base, pale at tip. Leaves ovate to obovate, 50-100m m long, 30-60 mm wide, acuminate, rounded or cordate at base, finely serrulate, dark green above, glabrous or with white hairs along lower-side midrib, firm and leathery with sunken veins. Petioles stout, 0.8-2.0 mm in diameter ,10-20mm long, grooved, red with two prominent dark red/brown extra-floral nectaries, one on each side of the distal end. Flowers fragrant, white, in loose glabrous racemes 100-200 mm long, with leaves near base, 50-90 mm (150 mm in exceptional cases). Calyx with five shallow rounded lobes, receptacle hairy within, sepals short (2-3 mm long), obtuse, ascending; petals 4 -6(-9) mm, white and toothed. Usually 20 stamens, one carpel and a terminal style. Ovary superior with two ovules. Fruit 6-8mm, 130-210mg (fresh weight),g lobular, black ,bitter to taste. Native, found especially alongside rivers, streams or on the edges of cultivated land, with many cultivars in gardens. Typically a component of woodland and scrub at moderate altitudes on calcareous or neutral soils which are fairly wet; often associated with Fraxinus excelsior and Alnus glutinosa. Placed in subgenus Padus (Mill.) Focke, Section Padus. Flora Europaea gives two subspecies: padus, the tree form up to 17m with heavily scented flowers, and borealis Cajander, the shrub form up to 3 m with prominent leaf veins and flowers scarcely scented, but absent from Britain. The main cultivar wateri is frequently seen, with flower spikes much longer, spectacular in flower, and with spreading pendulous shoots.},
  journal = {Journal of Ecology},
  keywords = {*file-import-15-06-30,*imported-from-citeulike-INRMM,~INRMM-MiD:c-13661228},
  lccn = {INRMM-MiD:c-13661228},
  number = {1}
}

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