Status:
valid
Authors:
Wallr.
Source:
gcc
Year:
1822
Citation Micro:
Sched. Crit. : 446 (1822)
WFO Identifier:
wfo-0000133940
Common Names
- Thistle
- Bull Thistle
- Nodding Thistle
Description
Cirsium rigens (also called rigid thistle, among many other common names) is a biennial plant native to the western United States and Canada. It has purple flowers and grows in dry soils, often in disturbed areas.
Uses & Benefits
Cirsium rigens is a perennial plant that is used as an ornamental plant in gardens and as a food source for wildlife. It has a long taproot that helps to break up hard soils, making it useful for soil improvement. It can also be used as a medicinal plant, as it has anti-inflammatory and diuretic properties.
Flower, Seeds and Seedlings
The flower of Cirsium rigens is white, with a diameter of 2-3 cm. The seeds are small and black, and the seedlings are small and green.
Cultivation and Propagation
Cirsium rigens is a perennial plant that can be propagated by division or seed. It prefers full sun and well-drained soil. It is drought tolerant and can be grown in USDA hardiness zones 8-10.
Where to Find Cirsium rigens
Cirsium rigens is native to the western United States and can be found in meadows, pastures, and open woodlands.
Cirsium rigens FAQ
What is the scientific name of Cirsium rigens?
Cirsium rigens
What is the common name of Cirsium rigens?
Stiff Thistle
Where is Cirsium rigens native to?
North America
Species in the Cirsium genus
Cirsium steirolepis,
Cirsium oaxacanum,
Cirsium alatum,
Cirsium scariosum,
Cirsium ganjuense,
Cirsium stojanovii,
Cirsium tymphaeum,
Cirsium maroccanum,
Cirsium decussatum,
Cirsium mairei,
Cirsium aggregatum,
Cirsium brevistylum,
Cirsium wakasugianum,
Cirsium echinatum,
Cirsium obvallatum,
Cirsium bertolonii,
Cirsium borealinipponense,
Cirsium bipontinum,
Cirsium vinaceum,
Cirsium carolinianum,
Cirsium uliginosum,
Cirsium suffultum,
Cirsium crassum,
Cirsium naikurense,
Cirsium sairamense,
Cirsium lappoides,
Cirsium komarovii,
Cirsium roseolum,
Cirsium vlassovianum,
Cirsium elbrusense,
Cirsium helenioides,
Cirsium suzukaense,
Cirsium horridulum,
Cirsium skutchii,
Cirsium jaliscoense,
Cirsium schelkownikowii,
Cirsium masami-saitoanum,
Cirsium amani,
Cirsium brevifolium,
Cirsium cymosum,
Cirsium arvense,
Cirsium muticum,
Cirsium perplexans,
Cirsium pseudosuffultum,
Cirsium canescens,
Cirsium macrobotrys,
Cirsium karduchorum,
Cirsium odontolepis,
Cirsium mcvaughii,
Cirsium lineare,
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,