R
- Ragwort - Threadleaf Groundsel
- (- 1 -) LCRV-Rambling Milkweed - Sarcostemma hirtellum- Funastrum hirtellum
Rambling Milkweed
Hairy Milkweed
Trailing Townula
See: Apocynaceae//Asclepiadaceae, Sarcostemma, Funastrum
See also: Rambling Milkweed (photo) - (- 2 -) Range Ratany - Krameria parvifolia
Range Ratany, Range Rhatany
Little Leaf Ratany
Chacate
See: Krameria, Krameriaceae - Ratany, or Rhatany: See: Range Ratany, or Wild Ratany
- Rattlebox - Desert senna
- Rattleweed - Desert senna
- (- 3 -) Red Raspberry - Rubus strigosus
Red Raspberry, Western Red Raspberry
Wild Red Raspberry
See: Rosaceae, Rubus
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- See: Rubus strigosus
- Red Willow - Willows: Bonpland Willow
- (- 4 -) Reed
-
- Common Reed - Phragmites
- See: Reed (plant)
- Rhatany, or Ratany: See: Range Ratany, or Wild Ratany
- (- 5 -) LCRV-Rigid Spiny-Herb - Chorizanthe rigida
Rigid Spiny-herb, Turk's rug
See: Polygonaceae (with Chorizanthe) - Rock Crossosoma - Bigelow Ragged Rock Flower
- (- 6 -) LCRV-Rock Hibiscus - Hibiscus denudatus
Rock Hibiscus, Naked Hibiscus
Pale Face, Paleface - "Note: the flower petals are translucent-White, not "Opaque, White"
See: Hibiscus, Malvaceae - Rosario - Crucifixion Thorn /#1
- Rosemaria - Desert senna
- Rosin brush - Desert Broom
- Rosita - Arizona Centaury
- (- 7 -) Roundleaf Snowberry - Symphoricarpos rotundifolius
Roundleaf Snowberry
Waxberry
Mountain Snowberry
See: Symphoricarpos, Caprifoliaceae - (- 8 -) LCRV-Rush Milkweed - Asclepias subulata
Leafless Milkweed
Rush Milkweed
Bedstraw Milkweed, Desert Milkweed
Ajamete
See: Apocynaceae//Asclepiadaceae, Asclepias - (- 9 -) Russian Knapweed - Centaurea repens /Acroptilon repens
Russian Knapweed
Star-Thistle/#2
Puna Grass
See: Centaurea, Asteraceae
Now: Naturalized - (- 10 -) LCRV-Russian Thistle - Tumbleweed
Read more about this topic: List Of Plants By Common Name (Sonoran Desert)