semidouble


Also found in: Dictionary.

semidouble

[¦sem·i′dəb·əl]
(botany)
Pertaining to a flower that has more than the usual number of petals or disk florets while it retains some pollen-bearing stamens or some perfect disk florets.
Mentioned in ?
References in periodicals archive ?
For a burst of yellow in a mixed planting basket, Bidens ''olaire Semidouble' didn't disappoint, forming a dense trailing mat of fine foliage covered with hundreds of tiny, vibrant flowers that have an extra set of petals around the eye, forming a frilly collar.
A small single or semidouble bloom, in a vibrant magenta color, it is now one of seven Knock Out varieties, including the soft pink Blushing Knock Out and the somewhat fragrant, buttery yellow Sunny Knock Out.
'Princess Orange Black' (Mr Fothergill's) has semidouble orange flowers with a chocolate centre, blooming in mid summer and growing to 60cm tall.
Although these plants grow just 12 to 14 inches tall, they offer an abundance of impressive double and semidouble flowers in a bright mix of yellow, orange, pink and red.
The collection is completed by the doubleflowered purple and cerise Dollar Princess, the striking semidouble white and red Snowcap, the pink and red Celia Smedley and the formidable mauve and purple of Beacon.
Annie's Annuals & Perennials (anniesannuals.com or 888/266-4370) has gorgeous hybrid poppies--such as reseeding Papaver 'Orange Chiffon', with 4-inch flowers, and frilly, semidouble lilac 'Sugar Plum'--and a large selection of sweet peas: Check out 'Senator', an heirloom with unusually large, highly fragrant, maroon-streaked white flowers, says owner Annie Hayes.
With azalea and rhododendron about to come into season (and some early varieties are already in bloom), it's hardly surprising that there are certain plants named after the eponymous day itself, including 'Rhododendron Mother's Day', a dwarf evergreen variety which produces large semidouble rose red flowers in April.
Create a spectacular cascading display with this premium Begonia Apricot Shades, producing an avalanche of double and semidouble flowers throughout summer well into autumn.
Many popular plants were bred to have big blousy double or semidouble flowers from which bees can't extract nectar.