Your search found 6 image(s) of involucral bracts of Rattlesnake-root.
To see larger pictures, click or hover over the thumbnails.
To go to the plant's detail page, click its name.
)
Slender Rattlesnake-root,
Nabalus autumnalis
Calyculi green to purple, triangular to subulate; phyllaries pink or purple, glabrous, per Flora of North America.
)
Gall-of-the-earth,
Nabalus trifoliolatus
Involucre smooth with 7-9 principal bracts and 9-13 ray flowers per head, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
)
Roan Mountain Rattlesnake-root,
Nabalus roanensis
The involucres have some long spreading hairs and black-tipped bracts, per Wildflowers of the Southern Mountains (Smith, 1998).
)
Tall Rattlesnake-root,
Nabalus altissimus
Usually 5 florets in each head, subtended by 5 smooth principal bracts, per Wildflowers of the Southern Mountains (Smith, 1998).
)
Lion's-foot Rattlesnake-root,
Nabalus serpentaria
Involucre has 8 principal bracts w a few long coarse hairs, oft black-dotted, per Wildflowers of Tennessee (Carman, 2005).
)
Barbed Rattlesnake-root,
Nabalus barbatus
Phyllaries densely setose [covered with bristles], per Weakley's Flora (2012).