Download Copy a link to this page Cite this record

Helianthus annuus L.

Scientific name record
Names_Plants record source
Is NZ relevant
This is the current name
This record has collections
This record has descriptions
This is foreign
Show more

Click to collapse Details Info

Helianthus annuus L., Sp. Pl. 904 (1753)
Helianthus annuus L.

Click to collapse Biostatus Info

Exotic
Wild
New Zealand
Political Region

Click to collapse Nomenclature Info

L.
L.
1753
904
ICN
Helianthus annuus L.
species
Helianthus annuus

Click to collapse Classification Info

annuus

Click to collapse Vernacular names Info

Click to collapse Descriptions Info

Helianthus annuus L.

Erect annual herb, with stout taproot. Stems scabrid, not branched, 0.4- c. 2 m tall. Lower and mid cauline lvs hispidulous, petiolate, ovate- elliptic to ovate-triangular, acute to acuminate, obtuse or truncate to cordate at base, serrate, 6-20-(30) cm long; upper cauline lvs similar to lower, but uppermost alternate, smaller and narrower. Capitula (8)-10-20-(30) cm diam., solitary. Involucral bracts in 2-3 rows, moderately to densely scabrescent, ciliate, ovate to ovate-triangular, aristate, c. 3-6 × (0.8)-1.5-2 cm. Receptacle ± flat; scales membranous, the larger with dark ciliate apices. Ray florets (15)-20-50; disc florets numerous, brownish yellow. Achenes oblong-obovoid, narrowed to base, hairy, 10-15 mm long; pappus 0.

Click to collapse Taxonomic concepts Info

Helianthus annuus L.
Helianthus annuus L.
Helianthus annuus L.
Helianthus annuus L.
Helianthus annuus L.

Click to collapse Collections Info

Helianthus annuus L.
New Zealand
Canterbury Land District
Helianthus annuus L.
New Zealand
Taranaki Land District
Helianthus annuus L.
New Zealand
Wellington Land District
Helianthus annuus L.
Tonga

Click to collapse Metadata Info

ca64669a-79cc-41f4-9959-7f6883a56dcd
scientific name
Names_Plants
1 January 2000
20 November 2013
Click to go back to the top of the page
Top