B
- Banana yucca - Yucca baccata
- (- 1 -) Barberry - Fremont Barberry
- (- 2 -) Barestem Larkspur - Delphinium scaposum
Barestem Larkspur, Tall Mountain Larkspur
Wild Delphinium, Naked Delphinium
Espuelita
See: Delphinium, Ranunculaceae - Barnaby Thistle - Yellow Star Thistle
- Basket Evening Primrose - Dune Primrose
- Bearberry - See: Manzanita, (Pungens)
- Beavertail Cactus - Opuntia basilaris
- Bebbia - Chuckwalla's Delight
- Bedstraw Milkweed - Rush Milkweed
- (- 3 -) Bermuda grass - Cynodon dactylon
-
- See: Cynodon dactylon for common names (8).
- (- 4 -) Bigelow Ragged Rock Flower - Crossosoma bigelovii -
Bigelow Ragged Rock Flower
Bigelow's Crossosoma
Rock Crossosoma
See: Crossosoma - Bigelow's Crossosoma - Bigelow Ragged Rock Flower
- Birdcage Evening Primrose - Dune Primrose
- Bitterbrush - Cliffrose
- Black Greasewood - See: Greasewood
- (- 5 -) Blackberry - Rubus spp., Rubus pensilvanicus, Rubus occidentalis
Local introduction (in mountains) - Bladderstem - Desert trumpet
- Blazing Star - Desert Blazing Star
- Blue Elderberry - Mexican Elder
- Blue Palo Verde - Palo verde
- (- 6 -) Blue Phacelia - Phacelia distans
See: Boraginaceae
See: List of Phacelia Species - Blue Yucca - Banana yucca
- (- 7? -) Boojum tree - Fouquieria columnaris
-
- See: Ocotillo
- (- 8 -) LCRV-Bluestem Pricklepoppy - Argemone pleiacantha
Bluestem Pricklepoppy
Prickly Poppy, Thistle Poppy
Chicalote
Cowboy's Fried Egg
See: Argemone, Papaveraceae - Bonpland Willow - See: Willow
- Boxelder - Acer negundo
- Branched Pencil Cholla - Diamond Cholla
- (- 9 -) LCRV-Brittlebush - Encelia farinosa
-
- Brittlebush - Encelia
- See: Encelia farinosa
- Broad Leaved Chaenactis - Esteve's Pincushion
- (- 10 -) Broad Leaved Gilia - Gilia latifolia
Broad Leaved Gilia
Starflower
See: Gilia, Polemoniaceae - Broom Baccharis - Desert Broom
- (- 11 -) Broom Snakeweed - Gutierrezia microcephala
-
- See: Asteraceae
- See: List of Asteraceae genera
- Buckley's Centaury - Arizona Centaury
- (California)-Buckthorn - See: California Buckthorn
- (- 12 -) Buffalo Gourd - Cucurbita foetidissima
See: See: Cucurbita, Cucurbitaceae
-
- See also: Finger Leaf Gourd
- (- 13 -) Buffalo Weed - Ambrosia trifida
See: Ambrosia, Heliantheae - Bullet Stick Leaf - Desert Blazing Star
- Bull Head - Puncture Vine(Goatheads)
- (- 14 -) Bulrush - Schoenoplectus
- (- 15 -) Bulrush - Scirpus
-
- California Bulrush - Scirpus californicus
- Bulrush
-
- Bulrush, (=Tule) - Schoenoplectus
- Bush Senecio - Threadleaf Groundsel
- Butterweed - Threadleaf Groundsel
Read more about this topic: List Of Plants By Common Name (Sonoran Desert)