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Leucosidea sericea is a member of the Rosaceae, also known as the rose family.Although this family is very large and economically important worldwide, it is poorly represented in Africa generally and in southern Africa in particular.
Rosaceae generally have five sepals, five petals, and many spirally arranged stamens. The bases of the sepals, petals, and stamens are fused together to form a characteristic cup-like structure called a hypanthium. They can be arranged in spikes, or heads. Solitary flowers are rare.
There are approximatively 100–160 genera and 3,500–4,000 species in the family Rosaceae. Plants of the World Online currently accepts 108 genera. [1
List of the vascular plants of Britain and Ireland #5 — this page's list covers the dicotyledon family Rosaceae. Status key: * indicates an introduced species and e indicates an extirpated species.
The species grow to between 0.5–2 m (1.6–6.6 ft) tall, with interrupted pinnate leaves, and tiny yellow flowers borne on a single (usually unbranched) spike. Agrimonia species are used as food plants by the larvae of some Lepidoptera species including grizzled skipper (recorded on A. eupatoria) and large grizzled skipper.
A spike, usually pendulous, in which the mostly small flower s are unisexual and without a conspicuous perianth, e.g. in willows, poplars, oaks, and casuarinas. The individual flowers often have scaly bract s and are generally wind-pollinated. Catkins are usually shed as a unit. caudate Having a narrow, tail-like appendage or tip, e.g. a drip tip.
Pyracantha (from Greek pyr "fire" and akanthos "thorn", hence firethorn) [1] is a genus of large, thorny evergreen shrubs in the family Rosaceae, with common names firethorn or pyracantha. They are native to an area extending from Southwest Europe east to Southeast Asia.
Physocarpus capitatus is a dense deciduous shrub growing to 1–2.5 metres (3 + 1 ⁄ 2 –8 feet) tall. The reddish-gray bark, which is flaky and peels away in many irregular thin layers.