Kingdom:
Phylum:
Angiosperms
Order:
Asterales
Family:
Species:
smithiorum
ID:
62509

Status:
valid

Authors:
Heiser

Source:
gcc

Year:
1964

Citation Micro:
Rhodora 66: 346 (1964)

WFO Identifier:
wfo-0000061838

Common Names

  • Smithiorum Sunflower
  • Smithiorum Helianthus
  • Smithiorum False Sunflower

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Synonyms

  • Helianthus parviflorus attenuatus A.Gray [unknown]

Description

Helianthus smithiorum (also called Smith's sunflower, among many other common names) is an annual herb that grows up to 1 meter in height. It has yellow flowers and is native to the southeastern United States. It typically grows in dry, sandy soils, and is often found in open, disturbed areas such as roadsides and fields.

Uses & Benefits

Helianthus smithiorum is used as an ornamental plant in gardens and as a source of food for livestock. It is also used in traditional medicine for treating various ailments such as fever, headache, and stomachache.

Flower, Seeds and Seedlings

The flower of Helianthus smithiorum is a yellow-orange disc floret, with a diameter of about 1 cm. The seed is a small, dark-brown achene, with a diameter of about 0.5 cm. The seedlings are small, with a single stem and a few leaves.

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Cultivation and Propagation

Helianthus smithiorum is a perennial plant that grows in full sun and moist, well-drained soil. It can be propagated by seed or division. Seeds should be sown in spring and division should be done in early spring or fall.

Where to Find Helianthus smithiorum

Helianthus smithiorum is native to the southeastern United States and can be found in open woodlands, prairies, and savannas.

Helianthus smithiorum FAQ

What are the best growing conditions for Helianthus smithiorum?

Helianthus smithiorum prefers full sun and well-drained soil.

How often should I water Helianthus smithiorum?

Helianthus smithiorum should be watered regularly during the growing season, but allow the soil to dry out between waterings.

What type of fertilizer should I use for Helianthus smithiorum?

A balanced fertilizer should be used for Helianthus smithiorum, applied at least once a year.

Species in the Helianthus genus

Helianthus mollis, Helianthus luxurians, Helianthus simulans, Helianthus cusickii, Helianthus arizonensis, Helianthus californicus, Helianthus petiolaris, Helianthus hirsutus, Helianthus divariserratus, Helianthus decapetalus, Helianthus grosseserratus, Helianthus porteri, Helianthus cinereus, Helianthus occidentalis, Helianthus exilis, Helianthus silphioides, Helianthus resinosus, Helianthus microcephalus, Helianthus laetiflorus, Helianthus floridanus, Helianthus carnosus, Helianthus anomalus, Helianthus salicifolius, Helianthus dissectifolius, Helianthus paradoxus, Helianthus deserticola, Helianthus divaricatus, Helianthus radula, Helianthus pumilus, Helianthus smithiorum, Helianthus laciniatus, Helianthus ambiguus, Helianthus ambiguus, Helianthus angustifolius, Helianthus laevigatus, Helianthus glaucus, Helianthus strumosus, Helianthus pauciflorus, Helianthus ciliaris, Helianthus maximiliani, Helianthus glaucophyllus, Helianthus annuus, Helianthus bolanderi, Helianthus tuberosus, Helianthus giganteus, Helianthus alexidis, Helianthus heterophyllus, Helianthus verticillatus, Helianthus praecox, Helianthus schweinitzii,

Species in the Asteraceae family

Aaronsohnia pubescens, Aaronsohnia factorovskyi, Abrotanella filiformis, Abrotanella rostrata, Abrotanella linearis, Abrotanella trilobata, Abrotanella muscosa, Abrotanella inconspicua, Abrotanella trichoachaenia, Abrotanella caespitosa, Abrotanella nivigena, Abrotanella pusilla, Abrotanella linearifolia, Abrotanella papuana, Abrotanella rosulata, Abrotanella emarginata, Abrotanella fertilis, Abrotanella spathulata, Abrotanella purpurea, Abrotanella patearoa, Abrotanella submarginata, Abrotanella diemii, Abrotanella scapigera, Abrotanella forsterioides, Acamptopappus shockleyi, Acamptopappus sphaerocephalus, Acanthocephalus benthamianus, Acanthocephalus amplexifolius, Acanthocladium dockeri, Acanthodesmos distichus, Acanthodesmos gibarensis, Acanthospermum humile, Acanthospermum consobrinum, Acanthospermum glabratum, Acanthospermum microcarpum, Acanthospermum hispidum, Acanthospermum australe, Acanthospermum lecocarpoides, Acanthostyles buniifolius, Acanthostyles saucechicoensis, Achillea buiana, Achillea conrathii, Achillea cucullata, Achillea styriaca, Achillea clavennae, Achillea cappadocica, Achillea huber-morathii, Achillea ptarmicoides, Achillea sieheana, Achillea barrelieri,