Illinois Natural History Survey - University of Illinois

Hypericum mutilum ssp. boreale
Northern st. john's wort
Taxonomy

Synonyms: Hypericum boreale, Hypericum canadense var. boreale

Subspecific taxa:

Classification:

  • Magnoliophyta
    • Magnoliopsida

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
0
F
0
M
0
A
0
M
0
J
0
J
0
A
0
S
0
O
0
N
0
D
0

Collection & Observation Timeline [?]

Species Status

Status/Listing: Misidentified

Notes:Identifications of this subspecies in IL are thought to be based on erroneous identification, meaning that it is probably not found here (Ebinger et al. 2010)

Origin: Native

Species Description

General: Dicot-herb, perennial

Roots: primary, adventitious, stolons

Shoots: opposite leaf arrangment; simple leaf type; entire leaf margin; Pinnate leaf venation; linear leaf shape

Inflorescence: dichasium

Flowers: perfect; 5 merous; complete, regular; yellow; hypogynous ovary position

Fruit: capsule

Physiology: autotrophic; C3 C02 fixation

Ecology & Natural History

Habitat: Found in moist sand and peat.

ILPIN Notes:

Functional Relationships:

Human Relationships:

  • Edibility [?] :
  • Showy Flowers: low

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

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

  • Entire State: 10
  • Chicago Area: 10

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