Tuberous Indian-plantain (Arnoglossum plantagineum) COSEWIC assessment status report : chapter 3

Species Information

Name and classification

Scientific name:

Arnoglossum plantagineum Raf.

Synonym:

Cacalia plantaginea (Raf.) Shinners

Common name:

tuberous Indian-plantain

Family:

Asteraceae (aster family)

Major plant group:

dicot flowering plant

Description

Tuberous Indian-plantain is a perennial member of the aster family. It has long-stalked, mainly basal, leaves that resemble those of common plantain.  The central flowering stalk can reach to 1.8 m and bears a flat-topped flower cluster (Figure 1) of 30-100 white flower heads. Plants flower in June in Ontario with seed dispersal occurring from July to August (Keddy 1988).

Figure 1. Close-up view of several flower heads of tuberous Indian-plantain (courtesy Texas Vascular Plant Image Library, Texas A&M University).

Figure 1.  Close-up view of several flower heads of tuberous Indian-plantain (courtesy Texas Vascular Plant Image Library, TexasA&M University).

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