Status:
valid
Authors:
Petr.
Source:
gcc
Year:
1917
Citation Micro:
Beih. Bot. Centralbl. 35: 424 (1917)
WFO Identifier:
wfo-0000080689
Common Names
- Tracy's Thistle
- Tracy's Cirsium
- Tracy Thistle
Synonyms
- Carduus floccosus Rydb. [unknown]
- Carduus tracyi Rydb. [unknown]
- Cirsium acuatum (Osterh.) Rydb. [unknown]
- Cirsium floccosum (Rydb.) Petr. [deprecated]
- Carduus acuatus Osterh. [unknown]
- Cirsium acuatum (Osterh.) Petr. [deprecated]
- Cirsium undulatum tracyi (Rydb.) S.L.Welsh [unknown]
- Cirsium floccosum Rydb. [unknown]
Description
Cirsium tracyi (also called Tracy's Thistle, among many other common names) is a perennial herbaceous plant that grows to a height of 1-2 m. It is native to the southwestern United States, and is found in dry, rocky soils in open areas.
Uses & Benefits
Cirsium tracyi is used as an ornamental plant in gardens and parks, as well as for erosion control and as a source of food for livestock.
Flower, Seeds and Seedlings
The flower of Cirsium tracyi is a purple color, with a single ring of ray florets surrounding a yellow center. The seeds are small, brown and oval-shaped. The seedlings are small, with a single stem and a few leaves.
Cultivation and Propagation
Cirsium tracyi is a perennial plant that can be propagated by seed or division. It prefers moist, well-drained soil in full sun or partial shade. It is drought tolerant and can tolerate temperatures down to -15°C (5°F). It can be propagated by seed in spring or autumn, or by division in spring or autumn.
Where to Find Cirsium tracyi
Cirsium tracyi can be found in the Sierra Nevada Mountains of California.
Cirsium tracyi FAQ
What is the scientific name of Cirsium tracyi?
Cirsium tracyi
What is the family of Cirsium tracyi?
Asteraceae
What is the common name of Cirsium tracyi?
Tracy's thistle
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,