According to observations of naturalists and beekeepers.
Where are you?
California redbud occurs in Arizona, California, Nevada, and Utah. Its occurrence in Arizona is restricted to a few scattered locations in canyons and mountains in upper desert and woodland zones. It is common in the Grand Canyon. In Utah, California redbud is restricted to a few scattered locations in the southern part of the state.
This plant is present in at least 4 states/provinces in this country.
California redbud is a native, deciduous shrub-tree. It can appear as a tree with arching canopies that almost reach the ground or a considerably shorter, many-stemmed shrub. Plants generally occur singly, but they may form thickets in riparian zones.
California redbud plants are commonly from 7 to 20 feet (2-5 m) tall. The tallest California redbud on record is 29 feet (8.8 m). The stems are clustered and erect and predominantly leafless. During the 1st year of life, California redbud stems are covered in hairs. The inflorescence is a 2- to 5-flowered raceme. The flowers are 8 to 12 mm long and appear before the leaves. The seedpod is a flat legume from 2 to 4 inches (4-9 cm) long and 0.8 to 1 inch (2-2.5 cm) wide. Each seedpod contains 7 seeds from 3 to 4 mm in diameter.
California redbud is intermediately tolerant of flooding in semiarid riparian zones. Intermediately tolerant is defined as a species that "is able to survive flooding for periods between 1 to 3 months during the growing season. The root systems of these plants may produce few new roots or will be dormant during the flooded period".
Depending upon the ecosystem, California redbud flowers from February to June. In more temperate sections of the California coast, California redbud tends to bloom poorly in the spring because temperatures are too warm to facilitate flower bud formation.
Cercis orbiculata (aka: California redbud, Western redbud, Arizona redbud, Judas tree, Cercis occidentalis)
Salix lucida (aka: Shining willow, Greenleaf willow, Tail-leaf willow, Whiplash willow, Pacific willow, Lance-leaf willow, Longleaf willow, Red willow, Western shining willow)
Salix lutea (aka: Yellow willow)
Salix scouleriana (aka: Scouler's willow, Upland willow)
Prunus emarginata (aka: Bitter cherry)
Prunus andersonii (aka: Desert peach, Desert peachbush, Anderson peachbush, Wild almond)
Salix bebbiana (aka: Bebb willow, Beak willow, Beaked willow, Long-beaked willow, Diamond willow, Chaton, Petit Minou, Smooth Bebb willow)
Astragalus (aka: Milkvetch, Locoweed, Goat's-thorn)
Salix boothii (aka: Booth's willow)
Salix lemmonii (aka: Lemmon's willow, Lemmon willow)
Robinia pseudoacacia (aka: Black locust, False acacia, Yellow locust, White locust, Green locust, Post locust, Falsa acacia, Robinia)
Salix amygdaloides (aka: Peachleaf willow, Peach leaf willow)
Rubus idaeus (aka: Raspberry, Black-haired red raspberry, Brilliant red raspberry, American red raspberry, Red raspberry, Smoothleaf red raspberry, Wild raspberry, Wild red raspberry, Grayleaf raspberry)
Rhus glabra (aka: Smooth sumac, Common sumac, Rocky Mountain sumac, Red sumac, Western sumac, White sumac)
Brassica napus (aka: Rapeseed)
Allium schoenoprasum (aka: Chives)
Sinapis arvensis (aka: Charlock mustard, California rape, Charlock, Corn mustard, Canola, Kaber mustard, Rapeseed mustard)
Gleditsia triacanthos (aka: Honey locust, Honey shucks locust, Common honeylocust, Sweet bean locust)
Prunus virginiana (aka: Chokecherry, Western chokecherry, Common chokecherry, Black chokecherry)
Rubus parviflorus (aka: Thimbleberry, Western thimbleberry)
Salix geyeriana (aka: Geyer willow, Silver willow)
Salix planifolia (aka: Diamondleaf willow, Planeleaf willow)
Brassica rapa (aka: Field mustard, Common mustard, Wild mustard, Wild turnip, Forage turnip, Wild rutabaga, Birdsrape mustard, Rape mustard)
Rubus armeniacus (aka: Himalayan blackberry, Rubus discolor, Rubus procerus)
Cucumis melo (aka: Cantaloupe, Rockmelon, Sweet melon, Spanspek, Honeydew melon, Honeymelon, Crenshaw, Casaba)
Citrullus lanatus (aka: Watermelon)
