Family: Willow [Salicaceae] |
Populus |
Salix |
Salix covers Willows, Sallows and Osiers, from tall trees to prostrate undershrubs. They are all deciduous, most have alternate leaves, and nearly all grow in damp places. Osiers are tall shrubs, usually growing by fresh water. Sallows are tall shrubs or low trees with broad leaves. Willows are trees, sometimes very small trees in the case of Dwarf Willow; many hybridize with one another. They all bear flowers in catkins
Populus covers Aspen, a tree, and the Poplar trees which are tall.
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[SALIX] Willows
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There are also 13 triple hybrids, namely: Salix aurita × cinerea × phylicifolia Salix caprea × myrsinifolia × phylicifolia (Salix × phylicioides nom. nud.) Salix cinerea × myrsinifolia × phylicifolia Salix herbacea × myrsinifolia × phylicifolia Salix myrsinifolia × phylicifolia × repens Salix viminalis × cinerea × repens (Salix × angusensis) Salix myrsinifolia × phylicifolia × myrsinites (Salix × blyttiana) Salix caprea × cinerea × viminalis (Salix × calodendron) Salix cinerea × aurita × myrsinifolia (Salix × forbesiana) Salix cinerea × purpurea × viminalis Salix aurita × myrsinifolia × phylicifolia (Salix × saxetana) Salix purpurea × aurita × phylicifolia (Salix × sesquitertia) Salix aurita × caprea × viminalis with four of them being hybrids of Dark-leaved Willow (Salix myrsinifolia) and Tea-leaved Willow (Salix phylicifolia) with another Willow. These hybrids are not shown properly on the hybrid chart above, being partially over-lapped by normal hybrids with just two parents.
There is also a one quadruple hybrid:
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Creeping Willow (Salix repens) |
Dwarf Willow (Salix herbacea) | Photo: © Derek Mayes |
Grey Willow (Salix cineria) | Photo: © RWD |
Goat Willow (Salix caprea) | Photo: © RWD |
[POPULUS] Poplar
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[Populus] POPLAR HYBRID CHART |
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There exists a triple hybrid amidst these on the hybrid chart, Populus × jackii (Populus nigra × balsamifera × deltoides) where one of its parents, Eastern Cottonwood (Pupulus deltoides) is native to North America and does not grow wild in the UK, so does not appear on the chart nor in the BSBI database. Must he triple hybrid therefore be capable of reproducing itself, seeing as it is represented in the UK? |
Populus SPECIES LACKING HYBRIDS | ||||||||||
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Family: Willow [Salicaceae] |