Illinois Natural History Survey - University of Illinois

Juncus alpinoarticulatus
Richardson's rush, Northern green rush
Taxonomy

Synonyms: Juncus alpinus rariflorus, Juncus alpinus, Juncus alpinus fuscescens, Juncus richardsonianus, Juncus alpestris

Subspecific taxa:

Classification:

  • Magnoliophyta

Other taxonomic & nomenclature sources: USDA PlantsITISThe Plant ListIPNI

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: State threatened

Notes:

Origin: Native

Species Description

General: Monocot, perennial

Roots: adventitious, rhizomes

Shoots: alternate leaf arrangment; simple leaf type; entire leaf margin; Parallel leaf venation; awl-shaped leaf shape

Inflorescence: head

Flowers: perfect; 3 merous; complete, regular; green, others

Fruit: capsule

Physiology: autotrophic; C3 C02 fixation

Ecology & Natural History

Habitat: calcareous pond shores; Sand bars & sandy swales

ILPIN Notes: southern range limit also brownish flowers var. rariflorus-1 or several flowers elevated on short pedicels above the others. Var fuscens-flowers sessile or equally short- pedicellate. includes var. fuscescens Fern.

Functional Relationships:

  • Pollinators insects (wind)

Human Relationships:

  • Edibility [?] :
  • Showy Flowers:

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

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

  • Entire State: 8
  • Chicago Area:

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