Illinois Natural History Survey - University of Illinois

Carex atlantica ssp. capillacea
Inland sedge, Prairie star sedge
Taxonomy

Synonyms: Carex interior var. capillacea, Carex interior, Carex howei, Carex mohriana, Carex atlantica var. capillaceae, Carex delicatula

Subspecific taxa:

Classification:

  • Magnoliophyta
    • Liliopsida
      • Poales

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, fibrous

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

Inflorescence: spike, head

Flowers: perfect; 3 merous; incomplete, not petals, not sepals; hypogynous ovary position

Fruit: achene

Physiology: autotrophic

Ecology & Natural History

Habitat: Species is found in swampy, calcareous, spring-fed meadows, occasionally on dripping limestone ledges of bluff bases. Aboreal North America, species at its southern limits in Ozarks of Missouri.

ILPIN Notes: Perigynia sans wings, lower part spongy-thickened. Pistillate scales about 3/4 length of body of perigynia. Distinctive features include: 1) very narrow leaf-blades (1-3 mm w.) and, 2) few-flowered small clusters of widely spreading or recurving perigynia. Staminate flowers or remnants are at base of some spikes. Species is occasional in northern 1/2 of Illinois and Christian and Pope counties.

Functional Relationships:

Human Relationships:

  • Edibility [?] :
  • Showy Flowers:

Wildlife and Livestock Information:

  • Food Value:
  • Cover Value:

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

  • Entire State: 8
  • Chicago Area: 10

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