Ad
related to: helianthus spp and hybrids egg size guide
Search results
Results From The WOW.Com Content Network
Helianthus anomalus also has large seeds and rapid root growth, which contribute to its ability to survive in its extreme environment. [3] It is believed that large seeds are adaptive to dune plants because the large seed size prevents burial by the sand. [4] Helianthus anomalus is an annual plant. It is classified as Vulnerable in its native ...
Hybrid, Helianthus annuus dwarf2 does not contain the hormone gibberellin and does not display heliotropic behavior. Plants treated with an external application of the hormone display a temporary restoration of elongation growth patterns. This growth pattern diminished by 35% 7–14 days after final treatment. [9] Hybrid male sterile and male ...
Helianthus spp. are a nectar producing flowering plant that attract pollinators and parasitoids which reduce the pest populations in nearby crop vegetation. Sunflowers attract different beneficial pollinators (e.g., honey bees) and other known insect prey to feed on and control the population of parasitic pests that could be harmful to the ...
More than 50 are known to be perennial and winter-hardy. These plants are remarkably diverse in appearance, including variation for head size, color, leaf shape, height. Plant breeders at The University of Minnesota have made similar tetraploid hybrids [1] Examples of interspecific hybridization within the genus Helianthus.
Helianthus × brevifolius is a hybrid perennial species of sunflower in the family Asteraceae. It is native to N. Central & NE. U.S.A., [ 2 ] including Ohio . [ 3 ]
Helianthus × laetiflorus is a herbaceous plant with alternate, simple leaves, on green stems. The flowers are yellow, borne in late summer. The flowers are yellow, borne in late summer. [ 6 ] [ 7 ] This species is generally considered to be of hybrid origin, with the two parental species being Helianthus tuberosus and Helianthus pauciflorus .
Helianthus maximiliani is a North American species of sunflower known by the common name Maximilian sunflower. [ 2 ] This sunflower is named for Prince Maximilian of Wied-Neuwied , who encountered it on his travels in North America.
Helianthus giganteus is a perennial herbaceous plant native to the northern United States and southern Canada that can grow up to 1–3 metres (3.3–9.8 ft) tall with instances to 4m (13 feet). The leaves are approximately 1 inch wide by 7 inches long, and partly rough.