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Sporotrichosis, also known as rose handler's disease, [2] is a fungal infection that may be localised to skin, lungs, bone and joint, or become systemic. [ 2 ] [ 4 ] It presents with firm painless nodules that later ulcerate . [ 3 ]
It is this route of infection, coupled with its presence on roses that give sporotrichosis its common name of "rose-handler's disease" [16] or "rose thorn disease". [17] Inhalation of spores is a rare route of infection largely associated with immunocompromised hosts. [18]
Prickles on a blackberry branch. In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.
Diplolepis rosae is a gall wasp which causes a gall known as the rose bedeguar gall, bedeguar gall wasp, Robin's pincushion, mossy rose gall, or simply moss gall. [ 1 ] [ 2 ] The gall develops as a chemically induced distortion of an unopened leaf axillary or terminal bud, mostly on field rose ( Rosa arvensis ) or dog rose ( Rosa canina ) shrubs.
Grapevine tendrils and leaves. Thorns. Cladodes. Aerial stem modifications are modifications to the aerial stems, [1] vegetative buds and floral buds of plants growing in different conditions and which perform functions such as climbing, protection, support, synthesis of food, or vegetative propagation.
Rose slugs (rose sawflies) – Sawflies are non-stinging wasps (Hymenoptera) in the suborder Symphyta, not flies . They lay eggs in plant leaves or stems with a saw-like ovipositor . There are three species that commonly cause damage to wild or cultivated roses: [ 5 ] The bristly roseslug ( Cladius difformis ) is found in Europe, Siberia, and ...
Axillary bud: A bud which grows at the point of attachment of an older leaf with the stem. It potentially gives rise to a shoot. Branched: Aerial stems are described as being branched or unbranched. Bud: An embryonic shoot with immature stem tip.
Crataegus (/ k r ə ˈ t iː ɡ ə s /), [2] commonly called hawthorn, quickthorn, [3] thornapple, [4] May-tree, [5] whitethorn, [5] Mayflower or hawberry, is a genus of several hundred species of shrubs and trees in the family Rosaceae, [6] native to temperate regions of the Northern Hemisphere in Europe, Asia, North Africa and North America.