Illinois Natural History Survey - University of Illinois

Carduus acanthoides
Plumeless thistle, Acanthus bristle thistle
Taxonomy

Synonyms:

Subspecific taxa:

Classification:

Other taxonomic & nomenclature sources: USDA PlantsITISThe Plant ListIPNI

Images

   
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Species Distribution
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County Map Legend
Absent:
Not known from county
Medium confidence:
Medium or unknown confidence;
often old records or unverifiable observations
Medium-high confidence:
Often observations by expert botanists
High confidence:
Often vouchered herbarium records
Planted / introduced:
Native species introduced outside historic range,
or only in planted locations within county (e.g., restorations)
Historic / extirpated:
Only historic records for the species; likely extirpated
(Note that this category is not yet functional)

North American distribution maps for this species: FLNAUSDA PlantsBONAPBISON

Collection & Observation Phenology [?]

J
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F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
0
O
0
N
0
D
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Collection & Observation Timeline [?]

Species Status

Status/Listing: No Information

Notes:

Origin: Europe

Species Description

General: Dicot-herb, biennial

Roots:

Shoots: alternate leaf arrangment; simple leaf type; serrate, lobed (pinnately), parted (pinnately) leaf margin; Pinnate leaf venation; oblong, lanceolate leaf shape

Inflorescence: head

Flowers: perfect; complete, regular; red, yellow, violet, white; epigynous ovary position

Fruit: achene

Physiology: autotrophic

Ecology & Natural History

Habitat: Species is distributed in wastes; where hay, straw, or soil have been brought in.

ILPIN Notes: Introduction of this species seems recent and may become a serious weed. Dried flowers are possibly used as a rennet to curdle milk; possibly pith of flowering stem, peeled and boiled, edible. Stephens, H.A. 1980. Poisonous Plants of the Central U.S. Regent Press of Kansas. Lawrence, KA. 165 pp. Species is rare in northern Illinois; absent elsewhere.

Functional Relationships:

Human Relationships:

  • Edibility [?] :
  • Showy Flowers:

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

Coefficient of Conservatism (C-value) [?] :

  • Entire State:
  • Chicago Area:

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