black-seeded plantain

(Plantago rugelii var. rugelii)

               
Conservation Status

IUCN Red List

not yet assessed

black-seeded plantain

NatureServe

N5 - Secure

SNR - Unranked

Minnesota

not listed

Wetland
Indicator
Status

Great Plains

FACU - Facultative upland

Midwest

FAC - Facultative

Northcentral & Northeast

FAC - Facultative

Nativity

Native

 
Occurrence

 

 
Habitat

Disturbed sites, gardens, lawns.

 
Flowering

June to August

     
Flower Color

Green to white

     
Height

3 to 12

     

Identification

This is a 3 to 12 tall, erect, perennial forb that rises on a rosette of leaves and 1 or more flowering stalks (scapes) from fibrous roots.

The leaves are all basal and form a rosette. They are broadly elliptic to broadly egg-shaped, 1½ to 7 long, and to 4 wide, 1.3 to usually 2 times as long as wide. They have 3 or more prominent veins that separate at the base and are parallel to the margins. They are abruptly contracted at the base to the leaf stalk. The leaf stalk is hairless and reddish, at least at the base. The margins are untoothed or irregularly toothed.

The scapes are leafless and 2 to 10 tall.

The inflorescence is an unbranched, cylindrical spike of tiny green flowers at the end of the scape. The spikes narrow, tapering, hairless, 2 to 11¾ tall, and less than wide.

The flowers are 1 16 to long. There are 4 green to white petals, 4 sepals, and 4 stamens. They are subtended by 1 16 to long, keeled, lance-shaped to triangular, leaf-like bracts. Pollination is by wind.

The fruit is a capsule containing 4 to 10 seeds.

 
Similar
Species

Common plantain (Plantago major) leaf stalks are green, not reddish, even at the base. The bracts are egg-shaped.


Distribution Distribution Map   Sources: 2, 3, 4, 5, 7, 28.

Comments

 


Taxonomy

Family:

Plantaginaceae (plantain)

 

Tribe:

Plantagineae

 

Genus:

Plantago (plantain)

 

Subgenus:

Plantago

 
Synonyms

 

 
Common
Names

black-seed plantain

black-seeded plantain

blackseed plantain

Rugel’s plantain


 

 

 

 

 

 

 

 

Glossary

bract

Modified leaf at the base of a flower stalk or flower cluster.

 

keeled

Folded, as in a grass blade, or with a raised ridge, as in a grass sheath; like the keel of a boat.

 

scape

An erect, leafless stalk growing from the rootstock and supporting a flower or a flower cluster.

 

sepal

An outer floral leaf, usually green but sometimes colored, at the base of a flower.

       

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  Plantago rugelii RED-STALKED PLANTAIN
Frank Mayfield
 
  Plantago rugelii RED-STALKED PLANTAIN  

 

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