A rose is either a woody perennial flowering plant of the genus Rosa, in the family Rosaceae, or the flower it bears. There are over three hundred species and tens of thousands of cultivars. The plants range in size and form, from trailing and erect shrubs to climbers up to 7 metres (23 ft) in height. Sharp prickles appear on the stems of many species. Their flowers vary in size and shape and are usually large and showy, in colours ranging from white through pinks, reds, oranges and yellows.
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Rosa × damascena
2 articles
Rosa multiflora
2 articles
Rosa carolina
1 articleEvery article on Plant News that mentions a member of this genus, newest first.
Researchers compared the genomes of 95 Sporothrix fungi, the cause of a spreading cat-linked skin infection in South America. The recently expanded S. brasiliensis shows little genetic variety, while dozens of gene changes may help it tolerate the antifungal drug itraconazole.
If you grow roses for cut flowers or fragrance, a simple vitamin C spray could mean more blooms and richer-smelling petals...
The yellow roses lining garden beds and flower shops get their color from a genetic program that breeders can now study in...
If you grow roses (or any water-thirsty ornamental) in a dry climate, this shows that layering mulch with composted manure can...
If you're weeding a fence line or hiking a local trail in the lower Hudson Valley, this thorny shrub can form dense,...
The fragrance fading from modern roses isn't accidental; breeders selected for looks and shelf life over scent, and mapping...
Those spent petals and pruned rose canes you're composting after harvest could be worth keeping: the 'waste' from damask roses...
Multiflora rose forms impenetrable thickets that crowd out the native shrubs and wildflowers your local pollinators and...
Carolina rose is a tough, drought-tolerant native shrub that supports pollinators and wildlife — and spotting it in a cemetery...
Wild roses from Central Asia are the ancestors of many garden roses you grow today, and understanding which genes help them...
If spider mites are shredding your rose bushes or pepper plants, the species doing the damage matters — because these two look...
Roses and potatoes bred with this bacterial trick could be made more compact, root more easily from cuttings, and potentially...
The fragrance fading from modern roses isn't accidental; breeders selected for looks and shelf li...
If spider mites are shredding your rose bushes or pepper plants, the species doing the damage mat...
Wild roses from Central Asia are the ancestors of many garden roses you grow today, and understan...
Roses and potatoes bred with this bacterial trick could be made more compact, root more easily fr...
If you grow roses for cut flowers or fragrance, a simple vitamin C spray could mean more blooms a...
The yellow roses lining garden beds and flower shops get their color from a genetic program that ...
Sporothrix is the fungus behind 'rose gardener's disease,' and it enters through skin pricks from...
