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Helianthus × laetiflorus (view source)
Revision as of 14:52, 20 October 2009
, 14:52, 20 October 2009no edit summary
{{SPlantbox
|familia=Asteraceae
|genus=Helianthus
|species=× laetiflorus
|common_name=hybrid sunflower
|habit=herbaceous
|Min ht metric=cm
|features=flowers
|flowers=yellow
|Temp Metric=°F
|image=Upload.png
|image_width=240
}}
Describe the plant here...
{{Inc|
{{Inc|
Helianthus scaberrimus, Ell. (H. rigidus, Desf. H. missiouriensis, Schwein.). St. 1-3 ft. high (rarely 5-8 ft.), strict, sparingly branched, rough or hairy: lvs. 6-12 in. long, oblong to ovate-lanceolate, firm, thick, rough- hairy, entire or slightly toothed: fls. 2 ½ -4 in. wide, showy, long-stalked; rays numerous, about 1 ½ in. long; disk sometimes yellow at first, turning brown. Aug.-Oct. Minn, to Ill., Ga., and Texas prairies. B.R. 508 (as H. atrorubens). B.M. 2020 (as H. diffusus); 2668 (H.atrorubens). Gn. 27, p. 68. G. 3:391; 17: 544 (both as Harpalium rigidum).—After H. decapetalus this species is one of the best perennial sunflowers. It varies under cult, chiefly in the direction of doubling and in lengthening the blooming period. Some of the best garden varieties are aestivalis, grandiflorus, semiplenus and Miss Mellish.
Helianthus scaberrimus, Ell. (H. rigidus, Desf. H. missiouriensis, Schwein.). St. 1-3 ft. high (rarely 5-8 ft.), strict, sparingly branched, rough or hairy: lvs. 6-12 in. long, oblong to ovate-lanceolate, firm, thick, rough- hairy, entire or slightly toothed: fls. 2 ½ -4 in. wide, showy, long-stalked; rays numerous, about 1 ½ in. long; disk sometimes yellow at first, turning brown. Aug.-Oct. Minn, to Ill., Ga., and Texas prairies.—After H. decapetalus this species is one of the best perennial sunflowers. It varies under cult, chiefly in the direction of doubling and in lengthening the blooming period. Some of the best garden varieties are aestivalis, grandiflorus, semiplenus and Miss Mellish.
}}
==Cultivation==
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===Propagation===
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===Pests and diseases===
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==Species==
<!-- This section should be renamed Cultivars if it appears on a page for a species (rather than genus), or perhaps Varieties if there is a mix of cultivars, species, hybrids, etc -->
==Gallery==
{{photo-sources}}<!-- remove this line if there are already 3 or more photos in the gallery -->
<gallery>
Image:Upload.png| photo 1
Image:Upload.png| photo 2
Image:Upload.png| photo 3
</gallery>
==References==
*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
<!--- xxxxx *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381 -->
<!--- xxxxx *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432 -->
<!--- xxxxx *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608 -->
}}
==External links==
*{{wplink}}
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