Dakota gentian

(Gentiana andrewsii var. dakotica)

               
Conservation Status

IUCN Red List

not listed

 

No image available

NatureServe

N2N5 - Vulnerable to Secure

SNR - Unranked

Minnesota

not listed

Wetland
Indicator
Status

Great Plains

FAC - Facultative

Midwest

FACW - Facultative wetland

Northcentral & Northeast

FACW - Facultative wetland

Nativity

Native

Occurrence

Rare

Habitat

Moderate moisture to wet. Prairies, meadows, open woods, swamps. Full to partial sun. Sandy, loamy soil.

Flowering

August to October

     
Flower Color

Whitish below, blue or blue-purple upwards

     
Height

1 to 3

     

Identification

This is a 1 to 3 tall, erect, perennial forb that rises on 1 to 20 stems from a stout taproot.

The stems are erect, occasionally leaning somewhat with the tips erect. They are rarely branched and usually hairless but occasionally covered with short fuzzy hairs.

The leaves are opposite, 1¾ to 6 long, to 2 wide, and are attached to the stem without a leaf stalk. The margins are untoothed and have a fringe of bristly or prickly hairs, but are otherwise hairless. Lower leaves are small and lance-shaped to egg-shaped. Middle leaves are larger and narrower. The 3 uppermost leaves, just below the inflorescence, are whorled.

The inflorescence is 1 to 25 flowers in a cluster at the end of the stem and also smaller clusters emerging from the upper leaf axils.

The flowers are erect and often stalkless. They are bottle-shaped and 1 to 1¾ long. There is no floral scent.

The 5 petals are fused with 5 longer white membranes (plaits) into a closed tube with no opening at the top. There are folds between the petals. At the top of each petal is a small, well developed, triangular or rounded lobe about long. These lobes are surpassed by the fringed tips of the plaits.

The fruit is a 1-chambered capsule containing many seeds.

 
Similar
Species

Bottle gentian (Gentiana andrewsii var. andrewsii) is much more common. The stems are always completely hairless. The lobe at the top of each petal is not well developed, much shorter, barely 1 32 long.

Great Lakes gentian (Gentiana rubricaulis) has white flowers with scattered blue spots. The flowers are narrowly open at the top.

Narrow-leaved gentian (Gentiana linearis) flowers appear closed but are actually narrowly open. It does not occur in Minnesota.

Soapwort gentian (Gentiana saponaria) flowers appear closed but are actually narrowly open. It does not occur in Minnesota.

Yellowish gentian (Gentiana flavida) has yellowish-white or greenish-white flowers that may appear closed but, on closer inspection, have a small opening at the top.


Distribution Distribution Map   Sources: 4, 7.

Comments

 


Taxonomy

Family:

Gentianaceae (gentian)

 

Tribe:

Gentianeae

 

Subtribe:

Gentianinae

 
Parent

bottle gentian (Gentiana andrewsii)

 
Synonyms

 

 
Common
Names

closed bottle gentian

Dakota gentian

 

 

 

 

 

 

 

 

 

       
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