Wildflowers with Indistinguishable Parts (Petals)

This is a list of species found on this site with Indistinguishable Parts (Petals), in order by the Common Name that is used for each species on this site.
 
 
 
The number of petals a flower has can be an important key to identifying the flower. Newcombe's Wildflower Guide is based on this concept.
An important thing to remember about this concept is that the "number of petals" represents the number of apparent petals. This is not necessarily the botanically-correct number of petals. Oftentimes what appear to be petals are actually sepals or bracts. It is an aid to identification, not a botanical classification.

 
 
 
 
Baneberry, Red
Baneberry, Red
(Actaea rubra)
Baneberry, White
Baneberry, White
(Actaea pachypoda)
Cattail, Common
Cattail, Common
(Typha latifolia)
Goldenseal
Goldenseal
(Hydrastis canadensis)
 
Joe Pye Weed, Sweet-scented
Joe Pye Weed, Sweet-scented
(Eupatorium purpureum)
Lizard's Tail
Lizard's Tail
(Saururus cernuus)
Pinweed, Hairy
Pinweed, Hairy
(Lechea mucronata)
Tansy
Tansy
(Tanacetum vulgare)
 
Tearthumb, Arrow-leaved
Tearthumb, Arrow-leaved
(Polygonum sagittatum)
Tearthumb, Halberd-leaved
Tearthumb, Halberd-leaved
(Polygonum arifolium)
Thistle, Bull
Thistle, Bull
(Cirsium vulgare)
Thistle, Canada
Thistle, Canada
(Cirsium arvense)
 
Thistle, Field
Thistle, Field
(Cirsium discolor)
Thistle, Globe
Thistle, Globe
(Echinops sphaerocephalus)
Thistle, Hill's
Thistle, Hill's
(Cirsium hillii)
Thistle, Nodding
Thistle, Nodding
(Carduus nutans)
 
Thistle, Pitcher's
Thistle, Pitcher's
(Cirsium pitcheri)
 
 

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