Kingdom:
Phylum:
Angiosperms
Order:
Asterales
Family:
Genus:
Species:
rioxanum
ID:
83911

Status:
valid

Authors:
Mateo

Source:
gcc

Year:
2004

Citation Micro:
Zubía 22: 222 (221-224; fig.). 2004

WFO Identifier:
wfo-0000083240

Common Names

  • Hieracium rioxanum
  • Riojan Hawkweed
  • Riojan Hawk's-beard

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Description

Hieracium rioxanum (also called 'Rio Xana Hawkweed', among many other common names) is a perennial herb native to the Canary Islands. It grows up to 40 cm tall and has yellow flower heads. It is found in dry and rocky habitats.

Uses & Benefits

Hieracium rioxanum is an ornamental plant that is known for its bright yellow flowers and its ability to attract butterflies and bees. It is also used as a medicinal plant to treat headaches, fever, and digestive issues.

Flower, Seeds and Seedlings

Hieracium rioxanum has small yellow flowers with a single row of ray florets and a yellow center. Its seeds are small and black, and its seedlings are small and have a basal rosette of leaves.

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Cultivation and Propagation

Hieracium rioxanum is a perennial herb that can be propagated by seed or division. It prefers well-drained soil and full sun. It is drought tolerant and can be grown in USDA hardiness zones 8-11.

Where to Find Hieracium rioxanum

Hieracium rioxanum is native to the Canary Islands, specifically in the provinces of Las Palmas and Santa Cruz de Tenerife.

Hieracium rioxanum FAQ

What are the growing conditions for Hieracium rioxanum?

Hieracium rioxanum prefers a sunny location in well-drained soil. It is drought tolerant and can tolerate temperatures as low as -10°C (14°F).

How do you propagate Hieracium rioxanum?

Hieracium rioxanum can be propagated by seed or by division of established plants.

What pests and diseases affect Hieracium rioxanum?

Hieracium rioxanum is generally pest and disease free, but it can be susceptible to fungal diseases such as powdery mildew and root rot.

Species in the Hieracium genus

Hieracium aragonense, Hieracium convergens, Hieracium claricolor, Hieracium criniculosum, Hieracium amphichnoum, Hieracium shoolbredii, Hieracium trachlosimum, Hieracium phaedrocheilon, Hieracium irasuense, Hieracium moravicum, Hieracium glaucopsis, Hieracium gigantum, Hieracium calliglaucum, Hieracium subfusciviride, Hieracium villattingense, Hieracium supernatum, Hieracium austurgilense, Hieracium cuspididentatum, Hieracium adspersum, Hieracium grandifolium, Hieracium hypochoeroides, Hieracium spathulatum, Hieracium stenolomoides, Hieracium berganum, Hieracium guthnikianum, Hieracium glanduliceps, Hieracium semianglicum, Hieracium amplificatum, Hieracium subacuens, Hieracium lanifolium, Hieracium sanguineum, Hieracium palenicae, Hieracium webbianum, Hieracium lugae-pljussae, Hieracium argospathum, Hieracium breconicola, Hieracium turritifolium, Hieracium sermonikense, Hieracium pedunculare, Hieracium parnassi, Hieracium exaltans, Hieracium ruminosiforme, Hieracium carpetanum, Hieracium subanfractum, Hieracium albiduliforme, Hieracium pallidivirens, Hieracium niveicuspis, Hieracium asteroloma, Hieracium pollinense, Hieracium azerbaijanense,

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,

References

The Plant List v1.1 record gcc-39725: Based on the initial data import
Gonzalo Mateo (b.1953): Based on occurrence of standard abbreviation 'Mateo' in the authors string.